potent
po-tent
adjective
(Of a male) capable of achieving and maintaining an erection.
"He was concerned about remaining potent in old age."
adjective
Having a very strong effect, influence, or power.
"The new policy proved a potent force for change."
Thesaurus
Synonyms: stiff, strong, equipotent, multipotent, powerful, virile, influential
Antonyms: impotent