baseless
adj. 无根据的；无基础的
例句
The charges against her are baseless.
针对她的控告毫无根据。
《柯林斯英汉双解大词典》
The rumours were completely baseless.
那些谣传毫无根据。
《牛津词典》
It is baseless and not correct.
没有事实根据，是不正确的。
