/ Dictionary / Index I indef.: Meaning and Definition of Find definitions for: indef. Pronunciation: [key] indefinite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. indeed indefatigable 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