/ Dictionary / Index H hidden: Meaning and Definition of Find definitions for: hid•den Pronunciation: (hid'n), [key] — adj. concealed; obscure; covert: hidden meaning; hidden hostility. —v. pp. of. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: hidden (Thesaurus) Hidatsa hidden agenda Related Content Daily Word Quiz: rarefied Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language