1610s, "that strikes," present-participle adjective from strike (v.). Meaning "producing a vivid impression" id from 1752, from the verb in the sense of "to catch the fancy of" (1590s). Related: Strikingly.
his striking good looks always created a sensation
a striking thing about Picadilly Circus is the statue of Eros in the center
a striking resemblance between parent and child