クナイ LinksSentence search for クナイSentence search for 苦無Sentence search for くないEdit in JMdict Noun1. ninja throwing knivesUsually written using kana alone, ColloquialNoun2. medieval farming tool for digging, prying, etc.orig. meaningOther forms苦無 【くない】Notes苦無: Ateji (phonetic) reading. Discussions Log in to talk about this word.