不ふ規き則そく活かつ用ようMeaningsNoun1. irregular conjugationKanji used不negative規criteria則rules活activity用used forComposed of不ふ規き則そくirregular; unsystematic; unsteady; disorderlyNa-adjective活かつ用ようpractical use; application; making good use of; putting to good use; capitalizing on; conjugation; inflectionNoun