bad, explosive, fierce, fiery, hot, nasty, terrible, violent, volatile
quick, short
uncontrollable

display, fit, flash, outburst
He broke the chair in a fit of violent temper.

have
He has a nasty temper.

control, keep
I only just managed to keep my temper with him.

lose
She loses her temper easily.

flare, rise
Tempers flared as the traffic jam became worse.

cool, cool down

tantrum

in a temper
She stormed out of the room in a temper.

keep your temper in check, keep your temper under control
He had to learn to keep his temper under control before he could become a teacher.

bad, filthy (esp. BrE), foul, ill, terrible
Peter's comments were responsible for her ill temper.

good
frayed
Frayed tempers at the end led to three players being sent off.

improve

improve
fray

in a temper
He stormed out of the room in a temper.