adj.无正当理由的;无确实根据的
网络 理由不充分的; 无正当理由的; 无事实根据
All our fears proved ill-founded.
我们所有的担心结果都证明是杞人忧天。
Suspicion and jealousy, however ill-founded, can poison a marriage.
怀疑和嫉妒,无论多么缺乏根据,也会毒害一桩婚姻。
Your argument is ill-founded.
你的理由站不住脚。
This faith may be ill-founded.
这个信念也许是站不住脚的。
Both seemed to have been ill-founded worries.
上面的两个担心看来是没有正当理由的担心。