Meanings of ungoverned temper in English

See what my ungoverned temper has done.

He was an older man than Philip by twenty years, but a man of quick and ungoverned temper.

What have I done with my ungoverned temper? He moved towards her with a face full of concern.

A pair more ill-matched could not have been found; the man by nature coarse, brutal, and cowardly; the woman, insolent, fearless, and of ungoverned temper.

I was once young, gay, and happy, as you, and, like you, an only and indulged, but wilful child, with a quick and ungoverned temper.