Star·tle v. i. [imp. & p. p. Startled p. pr. & vb. n. Startling ] To move suddenly, or be excited, on feeling alarm; to start.
Why shrinks the soul
Back on herself, and startles at destruction? --Addison.
startling
adj : so remarkably different or sudden as to cause momentary
shock or alarm; "Sydney's startling new Opera House";
"startling news"; "startling earthquake shocks"