strength

noun

A particular good quality or advantage; a positive attribute.

"His greatest strength is his calm demeanour."

noun

The quality of being physically strong; power to lift, move, or endure.

"She showed great strength lifting the heavy box."

Thesaurus

Synonyms: potency, effectiveness, durability, lastingness, enduringness, specialty, metier, forte, strong point, long suit, strong suit, speciality

Antonyms: unpersuasiveness, weak point, weakness