philanderer

美[fɪ'lændərɚ]

He's a bit of a philanderer -- don't take him too seriously!: 他这个人有点轻薄 -- 别跟他太认真!

Dilettante: a philanderer who seduces the several arts and letters each in turn for another.: 业余艺术爱好者——是轮流引诱文学与艺术的不专一者.