- a person who exploits circumstances to gain immediate advantage rather than being guided by consistent principles or plans机会主义者：
most burglaries are committed by casual opportunists.
多数的入室行窃是随意的机会主义者所为。
- opportunistic机会主义的：
the calculating and opportunist politician.
富于心计的机会主义政客。
派生词
opportunism
noun词源
late 19th cent.: from OPPORTUNE + -IST.