Answer:

SEESRED

AnswerCrossword Clue
SEESREDBoils
SEESREDHas a conniption
SEESREDHits the roof
SEESREDSteams
SEESREDBecomes livid
SEESREDDoes a slow burn
SEESREDBecomes enraged
SEESREDBlows a gasket
SEESREDLoses one's cool
SEESREDIs imbued with ire
SEESREDGoes ballistic
SEESREDGets steamed
SEESREDIs irate
SEESREDBlows up
SEESREDHardly keeps cool
SEESREDGets incensed
SEESREDIs infuriated
SEESREDIs incensed
SEESREDIs more than miffed
SEESREDFumes
SEESREDBristles
SEESREDGets mad
SEESREDGets peeved
SEESREDIs plenty angry
SEESREDBoils over
SEESREDIs steamed
SEESREDBecomes enraged: 2 wds.
SEESREDBecomes angry: Colloq.
SEESREDBecomes infuriated: Colloq.
SEESREDBecomes furious: Colloq.
SEESREDBecomes boiling mad.
SEESRED"Hits the ceiling."
SEESREDFlares up: Colloq.
SEESREDFlies into a rage: Colloq.
SEESREDIs furious: Colloq.
SEESREDBecomes enraged: Colloq.
SEESREDBecomes angry
SEESREDGets in a tizzy
SEESREDTakes in Skelton's act?
SEESREDGets hot?