temper
/ˈtem-pər/
noun
heat of mind or emotion : proneness to anger : passion
calmness of mind : composure
state of feeling or frame of mind at a particular time usually dominated by a single strong emotion
she has a real temper
disposition temperament temper character personality mean the dominant quality or qualities distinguishing a person or group. disposition implies customary moods and attitude toward the life around one. temperament implies a pattern of innate characteristics associated with one's specific physical and nervous organization.
verb
to dilute, qualify, or soften by the addition or influence of something else : moderate
to anneal or toughen (glass) by a process of gradually heating and cooling
to harden (a material, such as steel) by reheating and cooling in oil
temper justice with mercy
idiom
to remain calm : to not become angry, begin shouting, etc.
He was upset but kept his temper.