from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. Not often; infrequently: "The truth is rarely pure and never simple” ( Oscar Wilde).
- adv. In an unusual degree; exceptionally.
- adv. With uncommon excellence.
from the GNU version of the Collaborative International Dictionary of English
- adv. In a rare manner or degree; seldom; not often.
- adv. Finely; excellently; with rare skill. See 3d Rare, 2.
from The Century Dictionary and Cyclopedia
- Seldom; not often: as, things rarely seen.
- Finely, excellently; remarkably well; with a rare excellence.
- In excellent health: in quasi-adjective use. Compare purely in like use.
- So as to be underdone or only partially cooked: said of meats: as, a roast of beef rarely cooked.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. not often
From rare + -ly. (Wiktionary)