startled, past participle; startled, past tense; startling, present participle; startles, 3rd person singular present;
Cause (a person or animal) to feel sudden shock or alarm
a sudden sound in the doorway startled her
he was startled to see a column of smoke
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"
(startling) so remarkably different or sudden as to cause momentary shock or alarm; "Sydney's startling new Opera House"; "startling news"; "startling earthquake shocks"