/ Dictionary / Index I immeasurable: Meaning and Definition of Find definitions for: im•meas•ur•a•ble Pronunciation: (i-mezh'ur-u-bul), [key] — adj. incapable of being measured; limitless: the immeasurable vastness of the universe. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: immeasurable (Thesaurus) immaturity immediacy Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language