不ふ定てい形けいMeaningsNoun1. indeterminate formNo-adjective2. undefined; indefinite; unstructured; protean; amorphousKanji used不negative定define形shapePitch accentふていけいComposed of不ふ定ていunsettled; uncertain; indefinite; unfixed; variable; irregular; changeable; indeterminateNo-adjective形けいform; adjective; i-adjective (in Japanese)Suffix