proclivity

1. N-COUNT A proclivity is a tendency to behave in a particular way or to like a particular thing, often a bad way or thing. 癖性; 傾曏

He was indulging his own sexual proclivities. 他沉浸在自己的過度縱欲中。

...a proclivity to daydream. ...白日做夢的一種癖好。