ふい 不意をつく Show inflections LinksSentence search for 不意をつくSentence search for ふいをつくSentence search for 不意を突くSentence search for 不意を衝くKanji details for 不 and 意Edit in JMdict Expressions (phrases, clauses, etc.), Godan verb with 'ku' ending1. to take by surpriseSee also 不意を討つOther forms不意を突く 【ふいをつく】、不意を衝く 【ふいをつく】 Discussions Log in to talk about this word.