the fact that someone is likely to behave in a particular way, especially a bad way

[ + to infinitive ] She's inherited from her father a propensity to talk too much. 她从她父亲那里继承了话多的毛病。

He's well-known for his natural propensity for indiscretion. 他天生鲁莽的毛病是出了名的。

Synonyms: proclivity tendency