the ability to remain calm and not show your emotions even though you are feeling angry, excited, etc.to lose/regain your self-controlIt took all his self-control not to shout at them.Oxford Collocations Dictionaryverb + self-controlhave,lack,lose,…self-control + verbsnapphrasesa lack of self-control,a loss of self-control,powers of self-control,…Seefull entryExtra examplesShe struggled to keep her self-control.You should try exercising a little self-control!a person exercising ordinary powers of self-controlHe suddenly lost all self-control and started shouting and swearing.
See self-control in the Oxford Learner's Dictionary of Academic EnglishSee self-control in the Oxford Advanced American Dictionary
