involving great riskBelow decks was hazardous in very heavy weather.
a dangerous undertaking
It is a very risky business.
Students all over the country are facing an uncertain future.
huge allowances paid to staff working in insecure environments
His driving was a bit hairy.
Critics claim the trucks are unsafe.
Our financial situation had become precarious.
a perilous journey across the war-zone
parlous (archaic, humorous),
Our economy is in a parlous state.
dicey (informal, mainly British),
a dicey moment during a risky climb up the cliff
fraught with danger,
Investment is becoming a chancy business.
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in the sense of chancy
uncertain or riskyInvestment is becoming a chancy business.
in the sense of dicey
dangerous or trickya dicey moment during a risky climb up the cliff
Video: pronunciation of 'hazardous'
hazardous 的词库—— 柯林斯 英语词库