/ Dictionary / Index S self-assertion: Meaning and Definition of Find definitions for: self-as•ser•tion Pronunciation: (self'u-sûr'shun, self"-), [key] — n. insistence on or an expression of one's own importance, wishes, needs, opinions, or the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: self-assertion (Thesaurus) self-appointed self-assurance Related Content Daily Word Quiz: denizen Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language