/ Dictionary / Index A attainder: Meaning and Definition of Find definitions for: at•tain•der Pronunciation: (u-tān'dur), [key] — n. the legal consequence of judgment of death or outlawry for treason or felony, involving the loss of all civil rights. dishonor. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: attainder (Thesaurus) attainable attainment Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language