http://www.wordnik.com/lists/autantonyms.xml Words with mutually exclusive double meanings. Also, here are some: <br /> <br />QUASI-AUTANTONYMS: slow up/slow down; bar/debar; bone/debone; burn up/burn down; fat chance/slim chance; fill in/fill out; loosen/unloosen; ravel/unravel; restive/restless... <br />PSEUDO-AUTANTONYMS: catwalk/dogtrot; give in/take out; give off,put off/take on; give up,put up/take down; hereafter/therefore; hotheads/cold feet; inning/outing; input/outtake; layout/stand-in; left off/right on!; lowlands/high seas; maternity dress/paternity suit; nighthawk/mourning dove; overlay/understand; sit(-)in/stand out,standout; undergo/overcome; walk-on/run off,runoff; walkout/run(-)in; walk-up/run(-)down...and, <br /> <br />PSEUDO-SYNONYMS: windpower/air force; raindrop/waterfall; Central Time/Middle Ages; tall order/high command http://www.wordnik.com http://www.wordnik.com/words/worst Mon, 16 Nov 2009 15:51:22 +0000 http://www.wordnik.com/words/worst http://www.wordnik.com/words/toast Thu, 27 Aug 2009 19:35:05 +0000 http://www.wordnik.com/words/toast http://www.wordnik.com/words/downhill Thu, 27 Aug 2009 19:31:26 +0000 http://www.wordnik.com/words/downhill http://www.wordnik.com/words/mean Thu, 27 Aug 2009 19:30:48 +0000 http://www.wordnik.com/words/mean http://www.wordnik.com/words/cool Thu, 27 Aug 2009 19:26:55 +0000 http://www.wordnik.com/words/cool http://www.wordnik.com/words/before Wed, 29 Jul 2009 17:27:48 +0000 http://www.wordnik.com/words/before http://www.wordnik.com/words/either Wed, 01 Jul 2009 15:26:59 +0000 http://www.wordnik.com/words/either http://www.wordnik.com/words/radical Sat, 16 May 2009 19:05:59 +0000 http://www.wordnik.com/words/radical http://www.wordnik.com/words/beg Fri, 24 Oct 2008 15:29:03 +0000 http://www.wordnik.com/words/beg http://www.wordnik.com/words/soak Fri, 24 Oct 2008 15:23:42 +0000 http://www.wordnik.com/words/soak http://www.wordnik.com/words/yuck Sat, 16 Aug 2008 14:39:00 +0000 http://www.wordnik.com/words/yuck http://www.wordnik.com/words/stir Fri, 20 Jun 2008 15:03:48 +0000 http://www.wordnik.com/words/stir http://www.wordnik.com/words/zing Fri, 23 May 2008 19:30:15 +0000 http://www.wordnik.com/words/zing http://www.wordnik.com/words/yuk Fri, 23 May 2008 19:28:21 +0000 http://www.wordnik.com/words/yuk http://www.wordnik.com/words/x Fri, 23 May 2008 19:27:42 +0000 http://www.wordnik.com/words/x http://www.wordnik.com/words/vernacular Fri, 23 May 2008 19:23:41 +0000 http://www.wordnik.com/words/vernacular http://www.wordnik.com/words/nervy Fri, 23 May 2008 19:22:17 +0000 http://www.wordnik.com/words/nervy http://www.wordnik.com/words/peruse Fri, 23 May 2008 19:21:48 +0000 http://www.wordnik.com/words/peruse http://www.wordnik.com/words/literally Fri, 23 May 2008 19:19:27 +0000 http://www.wordnik.com/words/literally http://www.wordnik.com/words/kick off Fri, 23 May 2008 19:17:47 +0000 http://www.wordnik.com/words/kick off http://www.wordnik.com/words/jake Fri, 23 May 2008 19:16:09 +0000 http://www.wordnik.com/words/jake http://www.wordnik.com/words/hysterical Fri, 23 May 2008 19:14:42 +0000 http://www.wordnik.com/words/hysterical http://www.wordnik.com/words/aught Fri, 23 May 2008 19:12:10 +0000 http://www.wordnik.com/words/aught http://www.wordnik.com/words/enjoin Fri, 23 May 2008 19:09:21 +0000 http://www.wordnik.com/words/enjoin http://www.wordnik.com/words/into Fri, 23 May 2008 19:06:34 +0000 http://www.wordnik.com/words/into http://www.wordnik.com/words/tack Sat, 26 Apr 2008 15:16:33 +0000 http://www.wordnik.com/words/tack http://www.wordnik.com/words/fulsome Sat, 29 Sep 2007 18:46:08 +0000 http://www.wordnik.com/words/fulsome http://www.wordnik.com/words/host Fri, 02 Mar 2007 06:44:10 +0000 http://www.wordnik.com/words/host http://www.wordnik.com/words/bail Fri, 23 Feb 2007 09:11:23 +0000 http://www.wordnik.com/words/bail http://www.wordnik.com/words/charge Sat, 17 Feb 2007 12:10:45 +0000 http://www.wordnik.com/words/charge http://www.wordnik.com/words/debar Sat, 27 Jan 2007 11:39:37 +0000 http://www.wordnik.com/words/debar http://www.wordnik.com/words/assort Fri, 26 Jan 2007 11:53:44 +0000 http://www.wordnik.com/words/assort http://www.wordnik.com/words/asylum Fri, 26 Jan 2007 11:53:31 +0000 http://www.wordnik.com/words/asylum http://www.wordnik.com/words/bent Fri, 26 Jan 2007 11:53:17 +0000 http://www.wordnik.com/words/bent http://www.wordnik.com/words/boring Fri, 26 Jan 2007 11:53:05 +0000 http://www.wordnik.com/words/boring http://www.wordnik.com/words/corner Fri, 26 Jan 2007 11:52:29 +0000 http://www.wordnik.com/words/corner http://www.wordnik.com/words/close Fri, 26 Jan 2007 11:51:58 +0000 http://www.wordnik.com/words/close http://www.wordnik.com/words/dampen Fri, 26 Jan 2007 11:51:46 +0000 http://www.wordnik.com/words/dampen http://www.wordnik.com/words/depose Fri, 26 Jan 2007 11:51:29 +0000 http://www.wordnik.com/words/depose http://www.wordnik.com/words/drift Fri, 26 Jan 2007 11:50:54 +0000 http://www.wordnik.com/words/drift http://www.wordnik.com/words/extend Fri, 26 Jan 2007 11:50:42 +0000 http://www.wordnik.com/words/extend http://www.wordnik.com/words/fare Fri, 26 Jan 2007 11:50:19 +0000 http://www.wordnik.com/words/fare http://www.wordnik.com/words/fell Fri, 26 Jan 2007 11:48:23 +0000 http://www.wordnik.com/words/fell http://www.wordnik.com/words/fit Fri, 26 Jan 2007 11:48:13 +0000 http://www.wordnik.com/words/fit http://www.wordnik.com/words/fizzle Fri, 26 Jan 2007 11:47:29 +0000 http://www.wordnik.com/words/fizzle http://www.wordnik.com/words/gag Fri, 26 Jan 2007 11:47:16 +0000 http://www.wordnik.com/words/gag http://www.wordnik.com/words/gate Fri, 26 Jan 2007 11:47:09 +0000 http://www.wordnik.com/words/gate http://www.wordnik.com/words/go Fri, 26 Jan 2007 11:46:48 +0000 http://www.wordnik.com/words/go http://www.wordnik.com/words/hide Fri, 26 Jan 2007 11:46:21 +0000 http://www.wordnik.com/words/hide http://www.wordnik.com/words/lag Fri, 26 Jan 2007 11:45:38 +0000 http://www.wordnik.com/words/lag http://www.wordnik.com/words/leery Fri, 26 Jan 2007 11:45:27 +0000 http://www.wordnik.com/words/leery http://www.wordnik.com/words/lick Fri, 26 Jan 2007 11:44:15 +0000 http://www.wordnik.com/words/lick http://www.wordnik.com/words/match Fri, 26 Jan 2007 11:43:49 +0000 http://www.wordnik.com/words/match http://www.wordnik.com/words/nap Fri, 26 Jan 2007 11:43:20 +0000 http://www.wordnik.com/words/nap http://www.wordnik.com/words/part Fri, 26 Jan 2007 11:42:44 +0000 http://www.wordnik.com/words/part http://www.wordnik.com/words/peak Fri, 26 Jan 2007 11:42:29 +0000 http://www.wordnik.com/words/peak http://www.wordnik.com/words/post Fri, 26 Jan 2007 11:41:16 +0000 http://www.wordnik.com/words/post http://www.wordnik.com/words/quick Fri, 26 Jan 2007 11:40:55 +0000 http://www.wordnik.com/words/quick http://www.wordnik.com/words/radiator Fri, 26 Jan 2007 11:40:41 +0000 http://www.wordnik.com/words/radiator http://www.wordnik.com/words/release Fri, 26 Jan 2007 11:40:24 +0000 http://www.wordnik.com/words/release http://www.wordnik.com/words/retire Fri, 26 Jan 2007 11:37:11 +0000 http://www.wordnik.com/words/retire http://www.wordnik.com/words/ring Fri, 26 Jan 2007 11:33:29 +0000 http://www.wordnik.com/words/ring http://www.wordnik.com/words/row Fri, 26 Jan 2007 11:31:39 +0000 http://www.wordnik.com/words/row http://www.wordnik.com/words/sack Fri, 26 Jan 2007 11:31:12 +0000 http://www.wordnik.com/words/sack http://www.wordnik.com/words/tackle Fri, 26 Jan 2007 11:30:35 +0000 http://www.wordnik.com/words/tackle http://www.wordnik.com/words/spare Fri, 26 Jan 2007 11:30:17 +0000 http://www.wordnik.com/words/spare http://www.wordnik.com/words/succeed Fri, 26 Jan 2007 11:29:56 +0000 http://www.wordnik.com/words/succeed http://www.wordnik.com/words/stem Fri, 26 Jan 2007 11:29:28 +0000 http://www.wordnik.com/words/stem http://www.wordnik.com/words/strike Fri, 26 Jan 2007 11:28:59 +0000 http://www.wordnik.com/words/strike http://www.wordnik.com/words/spoil Fri, 26 Jan 2007 11:28:41 +0000 http://www.wordnik.com/words/spoil http://www.wordnik.com/words/drag Fri, 26 Jan 2007 11:28:24 +0000 http://www.wordnik.com/words/drag http://www.wordnik.com/words/resign Fri, 26 Jan 2007 11:28:01 +0000 http://www.wordnik.com/words/resign http://www.wordnik.com/words/fair Fri, 26 Jan 2007 11:27:39 +0000 http://www.wordnik.com/words/fair http://www.wordnik.com/words/baker Fri, 26 Jan 2007 11:27:05 +0000 http://www.wordnik.com/words/baker http://www.wordnik.com/words/moot Fri, 26 Jan 2007 11:26:48 +0000 http://www.wordnik.com/words/moot http://www.wordnik.com/words/cut Fri, 26 Jan 2007 11:25:31 +0000 http://www.wordnik.com/words/cut http://www.wordnik.com/words/crack Fri, 26 Jan 2007 11:25:00 +0000 http://www.wordnik.com/words/crack http://www.wordnik.com/words/doctor Fri, 26 Jan 2007 11:24:48 +0000 http://www.wordnik.com/words/doctor http://www.wordnik.com/words/save Fri, 26 Jan 2007 11:24:32 +0000 http://www.wordnik.com/words/save http://www.wordnik.com/words/refund Fri, 26 Jan 2007 11:24:06 +0000 http://www.wordnik.com/words/refund http://www.wordnik.com/words/waiter Fri, 26 Jan 2007 11:23:36 +0000 http://www.wordnik.com/words/waiter http://www.wordnik.com/words/over Fri, 26 Jan 2007 11:22:50 +0000 http://www.wordnik.com/words/over http://www.wordnik.com/words/ultimate Fri, 26 Jan 2007 11:22:33 +0000 http://www.wordnik.com/words/ultimate http://www.wordnik.com/words/garnish Fri, 26 Jan 2007 11:22:07 +0000 http://www.wordnik.com/words/garnish http://www.wordnik.com/words/patronize Fri, 26 Jan 2007 11:21:34 +0000 http://www.wordnik.com/words/patronize http://www.wordnik.com/words/execute Tue, 09 Jan 2007 07:57:48 +0000 http://www.wordnik.com/words/execute http://www.wordnik.com/words/exploit Tue, 09 Jan 2007 07:42:31 +0000 http://www.wordnik.com/words/exploit http://www.wordnik.com/words/line Sat, 06 Jan 2007 13:45:17 +0000 http://www.wordnik.com/words/line http://www.wordnik.com/words/mind Sat, 06 Jan 2007 09:37:20 +0000 http://www.wordnik.com/words/mind http://www.wordnik.com/words/awful Mon, 01 Jan 2007 10:25:02 +0000 http://www.wordnik.com/words/awful http://www.wordnik.com/words/bad Fri, 29 Dec 2006 15:33:00 +0000 http://www.wordnik.com/words/bad http://www.wordnik.com/words/unbending Thu, 28 Dec 2006 13:47:01 +0000 http://www.wordnik.com/words/unbending http://www.wordnik.com/words/cavalier Thu, 28 Dec 2006 13:46:22 +0000 http://www.wordnik.com/words/cavalier http://www.wordnik.com/words/quiddity Wed, 27 Dec 2006 14:43:40 +0000 http://www.wordnik.com/words/quiddity http://www.wordnik.com/words/fix Thu, 14 Dec 2006 10:58:21 +0000 http://www.wordnik.com/words/fix http://www.wordnik.com/words/think (better of) Sat, 09 Dec 2006 16:42:15 +0000 http://www.wordnik.com/words/think (better of) http://www.wordnik.com/words/vital Sat, 09 Dec 2006 16:27:15 +0000 http://www.wordnik.com/words/vital http://www.wordnik.com/words/mortal Sat, 09 Dec 2006 16:24:03 +0000 http://www.wordnik.com/words/mortal http://www.wordnik.com/words/trip Sat, 09 Dec 2006 16:23:23 +0000 http://www.wordnik.com/words/trip http://www.wordnik.com/words/bound Sat, 09 Dec 2006 16:21:37 +0000 http://www.wordnik.com/words/bound