/ Dictionary / Index I immaturity: Meaning and Definition of Find definitions for: im•ma•tu•ri•ty Pronunciation: (im"u-choor'i-tē, -toor'-, -tyoor'-, -chûr'-), [key] — pl. -ties a state or condition of being immature: the immaturity of one's behavior; the immaturity of a country's technology. an immature action or attitude. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: immaturity (Thesaurus) immature immeasurable 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