[noun] [U] [formal] - a tendency towards a particular way of behaving, esp. a bad oneShe's inherited from her father a propensity to talk too much. [+ to infinitive]He's well-known for his natural propensity for indiscretion.
PROPENSITY
Meaning of PROPENSITY in English
Cambridge English vocab. Кембриджский английский словарь. 2012