/ Dictionary / Index U utilitarianism: Meaning and Definition of Find definitions for: u•til•i•tar•i•an•ism Pronunciation: (y-til"i-târ'ē-u-niz"um), [key] — n. the ethical doctrine that virtue is based on utility, and that conduct should be directed toward promoting the greatest happiness of the greatest number of persons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: utilitarianism (Thesaurus) utilitarian utility Related Content Daily Word Quiz: miscreant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language