怒気 is read as どき (doki) and means anger.
どき
doki
ゆげをたてておこる
to boil with rage
いかり
anger
いかる
to be angular
おこる
おこらせる
to square (one's shoulders)
どなる
to shout (in anger)
どごう
angry roar
どなりこむ
to storm in with a yell
どせい
angry voice
けいき
good (economic) times
かっき
energy
ふけいき
gloomy