有用性 ゆうようせい Meanings Noun usefulness Kanji 有 have. Read as ユウ. 用 use. Read as ヨウ. 性 nature. Read as セイ. Example sentences 楽しみ以上の有用性て何かあるのか?What purpose does it have aside from for amusement? Common phrases 有用性がある Jinuma: Japanese Dictionary · Word lists