Noun
(plural aptnesses)
- suitability; the quality of being apt or suitable
- disposition of the mind; propensity
- the aptness of men to follow example
- quickness of apprehension; readiness in learning; docility
- An aptness to learn is more observable in some children than in others.
- proneness; tendency
- the aptness of iron to rust
Origin
apt +"Ž -ness