propensity

Definition of Propensity in English :

1. leaning, propensity, tendency

an inclination to do something

Example Sentences:
'he felt leanings toward frivolity'

2. leaning, proclivity, propensity

a natural inclination

Example Sentences:
'he has a proclivity for exaggeration'

3. aptness, propensity

a disposition to behave in a certain way

Example Sentences:
'the aptness of iron to rust'
'the propensity of disease to spread'

WordNet Lexical Database for English. Princeton University. 2010.

Propensity

noun plural -ties

1.

a natural tendency or disposition

2. obsolete

partiality

nounWord forms: plural proˈpensities

1.

a natural inclination or tendency; bent

2. Obsolete

favorable inclination; bias (for)

n. pl. pro·pen·si·ties

An innate inclination; a tendency.