必ひつ然ぜん性せいTop 15000MeaningsNoun1. necessity; inevitabilityKanji used必certainly然sort of thing性nature (of a person)Pitch accentひつぜんせいComposed of必ひつ然ぜんinevitable; necessary; certain; sure; inevitability; necessityNo-adjective性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun