baseless
adjective formal uk/ˈbeɪs.ləs/ us/ˈbeɪs.ləs/
没有事实基础的；无根据的
not based on facts
baseless accusations/allegations/rumours 毫无根据的谴责／指控／谣言
She assured me that my fears were baseless. 她向我保证说我的恐惧是毫无根据的。
Synonyms: groundlessunfoundedunwarranted