/ Dictionary / Index U underarmed: Meaning and Definition of Find definitions for: un•der•armed Pronunciation: (un"dur-ärmd'), [key] — adj. not having sufficient weapons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. underarm underbearer Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language