論鋒

ろんぽう【論鋒】

〔議論の勢い〕 the force of an argument.

●鋭い論鋒 an incisive [a keen, a trenchant] argument.

●論鋒の鋭さ the vigor of sb's polemics.

●論鋒を…に向ける turn the force of one's argument against….

●彼の論鋒はなかなか鋭かった. His argument was very powerful.