frivolous and not very reliable or seriousIn my youth I was a frivolous fool, vain and flighty.
I was a bit too frivolous to be a doctor.
I was just a kid and full of wild ideas.
She has a volatile temperament.
The situation is unstable and potentially dangerous.
It would be irresponsible to accept unrealistic targets.
a charmingly dizzy grandmother
fickle, , ,
They are fickle, faithless and lewd.
his mercurial temperament
At our stage in life we are unlikely to become giddy spendthrifts.
capricious mood swings
His unsteady relationship with his flatmates incited him to move out.
changeable, , ,
He was a man of changeable moods.
The forecast is for changeable weather.
a light-headed youth
She plays a scatterbrained student.
ditzy or ditsy (slang)
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in the sense of capricious
having a tendency to sudden unpredictable changes of attitude or behaviourcapricious mood swings
in the sense of changeable
changing oftenHe was a man of changeable moods.The forecast is for changeable weather.
flighty 的词库—— 柯林斯 英语词库
Life on the edge
The desire to push the boundaries has been a motivator in many a daring expedition, testing the human spirit and physical abilities to the utmost. Indulge your adventurous spirit by exploring some associated ‘extreme’ vocabulary. Will you have the survival skills to master our quiz?