adaptiveness.

The extent to which a response or trait helps someone or something function in its circumstances.

Use it for

Words that belong together

• adaptiveness of a response
• behavioural adaptiveness

On the page

The study questioned the adaptiveness of avoidance once the threat had passed.

Usage notes

Primary category: psychology / human behavior. Forms: Usually uncountable; no ordinary plural in this sense. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings. Established modern English lexical item. No separate regional spelling or grammatical inflection entry. Commonness: uncommon.