不ふ確かく定てい性せいMeaningsNoun1. uncertainty; indefinitenessKanji used不negative確certain定define性nature (of a person)Composed of不ふ確かく定ていuncertain; indefiniteNa-adjective性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun