/ Dictionary / Index H hidden agenda: Meaning and Definition of Find definitions for: hid'den agen'da Pronunciation: [key] an often duplicitously undisclosed plan or motive. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hidden hiddenite 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