tr.v.  de·feat·ed, de·feat·ing, de·feats  1.  To do better than (another) in a competition or battle; win victory over; beat: "Whether we defeat the enemy in one battle, or by degrees, the consequences will be the same" (Thomas Paine). 2.  To prevent the success of; thwart: Internal strife defeats the purpose of teamwork. 3.  Law   a.  To frustrate the enforcement of (a motion, for example). b.  To make (an estate, for example) void; annul. 4.  a.  To dishearten or dispirit: The last setback defeated her, and she gave up. b.  To be beyond the comprehension of; mystify: How the children found their way back home defeats me. n. 1.  a.  The act of defeating an opponent: the home team's defeat of their rivals. b.  The state of being defeated; failure to win: the home team's defeat by their rivals. 2.  A coming to naught; frustration: the defeat of a lifelong dream. 3.  Law   a.  The act of overcoming or frustrating the enforcement of.  b.  Law   The act of making null and void. [Middle English defeten, from defet, disfigured, from Old French desfait, past participle of desfaire, to destroy, from Medieval Latin disfacere, to destroy, mutilate, undo : Latin dis-, dis- + Latin facere, to do; see  dhē- in the Appendix of Indo-European roots.] de·feater n. Synonyms:  defeat, beat, conquer, rout1, vanquish These verbs mean to triumph over an adversary: defeated the opposing team by fourteen points; beat her competitor in the race for first place; conquered the enemy after a long battle; routed all opposition due to a brilliant strategy; vanquished the marauding army in a surprise attack.  | 
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.







