【對焦中英翻譯】「懷疑人生」的英文怎麼說？Cynical！

很難翻譯的英文字 cynical
這個字用在新聞英文有許多語意，沒有一個是老舊詞典所陳列的，學子學習時備感困難，在下面這個句子中，它意指自私的：
Not a single one dared to ... criticize Antifa in any way, because they're making a cynical decision that they want to encourage these radical leftists who are assaulting and threatening American citizens,"沒有一個人敢用任何方式批判Antifa，因為他們作了自私的決定，想要鼓勵攻擊、威脅美國人民的激進左派。

Cynical這個字真的很難，必須有十分明確的語境才知其意：

1.懷疑人生

Even though he had experienced many disappointments in his life, he did not allow himself to become cynical. 

即使他一生經歷許多失意的事，他也沒讓自己懷疑人生。

2.不信任

I am incredibly cynical of any politician who wants to shake my hands. 

我完全不信任想要跟我握手的政治人物。

3.憤世的

My suspicions don't mean that I am a doom-monger or cynical pessimist, but Utopian thinking hasn't led to very happy ends in the past.
我的懷疑不代表我是一個末世論者，或憤世的悲觀主義者，但烏托邦思想在過去並未帶來非常快樂的結果。