/ Dictionary / Index I immense: Meaning and Definition of Find definitions for: im•mense Pronunciation: (i-mens'), [key] — adj. vast; huge; very great: an immense territory. immeasurable; boundless. splendid: You did an immense job getting the project started. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: immense (Thesaurus) immemorial immensity Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language