impotent adj.
1 without enough power/influence
VERBS be, feel, prove | remain | leave sb, make sb, render sb Companies are rendered impotent by all the rules and regulations.
ADV. completely, quite, totally | virtually | politically
PREP. against They were virtually impotent against the power of the large companies.
2 not capable of having sex
VERBS be | become | leave sb, make sb The operation left him impotent.
ADV. sexually
You can also check other dicts: impotent (English, 中文解释 ), wordnet sense, Collins Definition