/ Dictionary / Index U underhand: Meaning and Definition of Find definitions for: un•der•hand Pronunciation: (un'dur-hand"), [key] — adj. not open and aboveboard; secret and crafty or dishonorable: an underhand deal with the chief of police. executed with the hand below the level of the shoulder and the palm turned upward and forward: an underhand delivery of a ball. —adv. with the hand below the level of the shoulder and the palm turned upward and forward: to bowl underhand. secretly; stealthily; slyly. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: underhand (Thesaurus) undergrowth underhanded Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language