from The American Heritage® Dictionary of the English Language, 5th Edition.

  • adjective Inexcusable; unpardonable.
  • adjective Invalid; untenable.
  • adjective Vulnerable to physical attack.

from The Century Dictionary.

  • Not defensible; that cannot be defended, maintained, or justified, by either force or speech: as, an indefensible frontier; conduct that is indefensible.

from the GNU version of the Collaborative International Dictionary of English.

  • Not defensible; not capable of being defended, maintained, vindicated, or justified; unjustifiable; untenable

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective Not defensible; not capable of being defended; vulnerable.
  • adjective Incapable of being justified or excused; inexcusable; unpardonable.
  • adjective Incapable of being explained; untenable; insupportable; invalid.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adjective not able to be protected against attack
  • adjective (of theories etc) incapable of being defended or justified
  • adjective incapable of being justified or explained


from Wiktionary, Creative Commons Attribution/Share-Alike License

in- +‎ defensible


Help support Wordnik (and make this page ad-free) by adopting the word indefensible.



Log in or sign up to get involved in the conversation. It's quick and easy.