Excitability.

The condition or fact of being hot-tempered or passionate; vivacity, feistiness; eagerness, zeal. Also: animation of the eyes as a result of…

As a personal quality: Passionateness, excitability, ardour of temperament. Obsolete.

figurative. Excitableness of temperament.

The quality of being excitable, liability or tendency to excitement; in plural excitable feelings.

Tendency or susceptibility to rapid emotional change; impressionability; excitability. Now rare.

the quality of being inflammable.

the condition or quality of being excitable.

The condition or quality of being gusty.