temper

(noun) a sudden outburst of anger. Synonyms: pique, irritation. Example: "His temper sparked like damp firewood."

(noun) a characteristic (habitual or relatively temporary) state of feeling. Synonyms: mood, humor, humour. Examples: "Whether he praised or cursed me depended on his temper at the time." "He was in a bad humor."

(noun) a disposition to exhibit uncontrolled anger. Synonyms: biliousness, irritability, peevishness, pettishness, snappishness, surliness. Example: "His temper was well known to all his employees."

(noun) the elasticity and hardness of a metal object; its ability to absorb considerable energy before cracking. Synonyms: toughness.

(verb) bring to a desired consistency, texture, or hardness by a process of gradually heating and cooling. Synonyms: anneal, normalize. Example: "Temper glass."

(verb) harden by reheating and cooling in oil. Synonyms: harden. Example: "Temper steel."

(verb) adjust the pitch (of pianos).

(verb) make more temperate, acceptable, or suitable by adding something else; moderate. Synonyms: season, mollify. Example: "She tempered her criticism."

(verb) restrain. Synonyms: chasten, moderate.