noun. The state or quality of being apt, in any sense of that word.

noun. Fitness; suitableness; appropriateness.

noun. Disposition of the mind; propensity.

noun. Quickness of apprehension; readiness in learning; docility.

noun. Proneness; tendency.

noun. Fitness; suitableness; appropriateness; as, the aptness of things to their end.

noun. Disposition of the mind; propensity; as, the aptness of men to follow example.

noun. Quickness of apprehension; readiness in learning; docility; as, an aptness to learn is more observable in some children than in others.

noun. Proneness; tendency; as, the aptness of iron to rust.

noun. a disposition to behave in a certain way

noun. appropriateness for the occasion

"Manning points out that a pattern of cognitive failure, followed by delayed understanding, has a certain aptness here."

appropriateness  disposition  

adroitness  attractiveness  cleverness  distinctness  docility  

appositeness  appropriateness  appropriateness  bent  bump