/ Dictionary / Index I immaterial: Meaning and Definition of Find definitions for: im•ma•te•ri•al Pronunciation: (im"u-tēr'ē-ul), [key] — adj. of no essential consequence; unimportant. not pertinent; irrelevant. not material; incorporeal; spiritual. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: immaterial (Thesaurus) Immanuel immaterialism 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