こんなんきわ 困難を極める Show inflections LinksSentence search for 困難を極めるSentence search for こんなんをきわめるSentence search for 困難をきわめるKanji details for 困, 難 and 極Edit in JMdict Expressions (phrases, clauses, etc.), Ichidan verb1. to be extremely difficult; to present a major challengeOther forms困難をきわめる 【こんなんをきわめる】 Discussions Log in to talk about this word.