Breadcrumb Home > Dictionary > Index U underpants: Meaning and Definition of Find definitions for: un•der•pants Pronunciation: (un'dur-pants"), [key] — n. (used with a pl. v.) drawers or shorts worn under outer clothing, usually next to the skin. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: underpants (Thesaurus) underpainting underpart TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: felicitous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language