ふてい 不定 Common word LinksSentence search for 不定Sentence search for ふていKanji details for 不 and 定Edit in JMdict Noun which may take the genitive case particle 'no', Na-adjective (keiyodoshi), Noun1. unsettled; uncertain; indefinite; unfixed; variable; irregular; changeableNoun which may take the genitive case particle 'no', Noun2. indeterminateMathematics Discussions Log in to talk about this word.