propensity – a tendency towards a particular way of behaving

(Pronounced pruh-pen-si-tee)

To remember the definition of the word propensity, use the following mnemonic:

I hate these professional pens from the city (propensity), they tend to have such a particular way of behaving. 

Examples of propensity in a sentence

He had a propensity for rude behaviour.

Her propensity for lying got her in a lot of trouble. 

The suspect had a propensity for violence.