The Oxford Thesaurus An A-Z Dictionary of Synonyms - self-controln.

1) self-discipline, self-restraint, restraint, self-denial, control, will-power, strength (of character or of mind or of will) , mettle, fortitude, moral fibre, determination, self-possession, resoluteness, resolve, will, constancy, steadfastness, perseverance, doggedness, obduracy, persistence, Facetious US won't-power: Can I exercise the self-control needed to stop smoking? 2 calmness, tranquillity, serenity, placidity, imperturbability, cool-headedness, coolness, poise, level-headedness, patience, aplomb, dignity, equanimity, forbearance, control, restraint, self-restraint, even temper: You exhibited marvellous self-control by not losing your temper when you were insulted.