Synonyms for Temper:

n.

asperity, outrage. emotion, your inner self, heart, sensation, undercurrent, furor. equanimity, poise, composure, tranquility. compose oneself, control oneself, restrain, not become angry. disposition, nature, complexion, be, temperament. frame of mind, spirit, feelings, vein. tetchiness, irascibleness, spleen, dander, short fuse. huff, tantrum, fit, conniption, conniption fit. attitude, tone. angriness; bad mood (noun)
irascibility, dander, fit, irritability, irritation, pugnacity, sullenness, tartness, sensitivity, short fuse, peevishness, acerbity, tantrum, surliness, furor.
feeling (noun)
irritation, pique.
hardness (noun)
hardness, intractibility, solidity, stiffness, rigidity, toughness, firmness, callousness.
state of mind (noun)
frame of mind, mood, disposition, spirit, complexion, tone, humor, vein, attitude, temperament, nature.
temper (noun)
irritation, harden, season, biliousness, pique, surliness, toughness, snappishness, chasten, peevishness, normalize, pettishness, moderate, irritability, mollify, mood, humour, humor, anneal.

v.

change (verb)
harden.
qualify (verb)
limit, stipulate, modify, qualify, mitigate, reserve, except, allow.

Other synonyms:

emotion, undercurrent, asperity, irascibleness, short fuse, outrage, tetchiness, conniption fit, conniption. spleen, tantrum, frame of mind. irascibility, sensation. heart, vein. complexion. annoyance
huff.
harden
harden.
quality
tone.
state of mind
attitude.
temperament
disposition.
wrath
dander.

Usage examples for temper

  1. I hope he is not losing his temper already. – A Christmas Posy by Mary Louisa Stewart Molesworth
  2. You can't ever tell about temper – Uncle William The Man Who Was Shif'less by Jennette Lee
  3. It is hard to know what to do with such a temper – Modern Religious Cults and Movements by Gaius Glenn Atkins