startled

(adjective)

ˈstär-təld

Definitions

Suddenly surprised or alarmed.
Jolted awake by the symphony of chaos, the heart skips to a new rhythm.

Example: She was startled by the loud noise.

Middle English, past participle of startlen, from Old English styrtan (to leap up).

shocked, alarmed, astonished, surprised

unperturbed, calm, unruffled