simple past tense and past participle of startle
"The loud crash startled me so much that I dropped my coffee cup."
excited by sudden surprise or alarm and making a quick involuntary movement
"students startled by the teacher's quiet return"
"the sudden fluttering of the startled pigeons"
"her startled expression"
Surprised and slightly frightened.
"The loud bang from outside startled her, making her jump back into her chair."