/ Dictionary / Index U unselfish: Meaning and Definition of Find definitions for: un•self•ish Pronunciation: (un-sel'fish), [key] — adj. not selfish; disinterested; generous; altruistic. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: unselfish (Thesaurus) unselfconscious unsell Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language