/ Dictionary / Index S self-discipline: Meaning and Definition of Find definitions for: self-dis•ci•pline Pronunciation: (self"dis'u-plin, self'-), [key] — n. discipline and training of oneself, usually for improvement: Acquiring the habit of promptness requires self-discipline. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: self-discipline (Thesaurus) self-diagnosis self-distrust 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