正せい論ろんTop 15000MeaningsNoun1. sound argument; fair argument; just reasoningKanji used正correct論argumentPitch accentせいろんUsed in vocabulary正せい論ろん理りpositive logicNounExamples1彼かれの言こと葉ばは正せい論ろんだったが、僕ぼくは心こころのどこかで引ひっかかりを感かんじていた。Even though what he said was sound, I still wasn't completely convinced.