1. 形容詞
   沒有事實根據的
   無理由的
   未建立的
   

   同義字詞
   baseless,foundationless,groundless,invalid,nonvalid,unreasonable,unsubstantiated,unsupported,unwarranted
   

例句

1. He regards the charges as unfounded .
2. In the end our worries were unfounded .
3. You are making an unfounded assumption .
4. As a scientist you cannot argue unfounded .
5. And again, it seems my fears were unfounded .
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