Of a person or temperament: excitable, highly strung, easily agitated, anxious, timid; hypersensitive; worried, anxious (about); afraid…

Of a person, a person's manner, etc.: twitchy, nervous, fidgety. Also of a thing: moving back and forth rapidly; jerky, jumpy.

Excitable, highly strung, easily agitated; worried, anxious; = nervous, adj. 9.

Apprehensive, nervous; filled with trepidation.

In all of a wonk: nervous, upset. Obsolete. rare.

Of a person (or animal): nervous; easily frightened; superstitious. North American slang.

Inclined to rush this way and that, unpredictable. Of a person: demented, crazy; jumpy, nervy.

nervy, jumpy, upset, ‘on edge’; also transferred.

Frightened; nervy; dogged by ill-fortune.

Chiefly Police slang. Nervous, uneasy.

Psychologically affected; spec. nervous, intimidated; mentally disturbed. Also in extended use: expressive of or characterized by intense emotion…

Peevish, complaining. In later use: talkative, chattering.