thorny
US /ˈθɔːr.ni/
UK /ˈθɔːr.ni/

形容詞
1.
2.
厄介な, 困難な, 複雑な
causing difficulties or disagreements; complex and difficult to deal with
例:
•
The negotiations faced many thorny issues.
交渉は多くの厄介な問題に直面した。
•
It was a thorny problem that required careful consideration.
それは慎重な検討を要する厄介な問題だった。
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