/ Dictionary / Index D defeatism: Meaning and Definition of Find definitions for: de•feat•ism Pronunciation: (di-fē'tiz-um), [key] — n. the attitude, policy, or conduct of a person who admits, expects, or no longer resists defeat, as because of a conviction that further struggle or effort is futile; pessimistic resignation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: defeatism (Thesaurus) defeat defeatist Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language