Adjective frightened has 2 senses
  1. panicky, panicked, panic-stricken, panic-struck, terrified, frightened - thrown into a state of intense fear or desperation; "became panicky as the snow deepened"; "felt panicked before each exam"; "trying to keep back the panic-stricken crowd"; "the terrified horse bolted"
    Antonyms: unafraid, fearless (indirect, via afraid)
  2. frightened, scared - made afraid; "the frightened child cowered in the corner"; "too shocked and scared to move"
    Antonyms: unafraid, fearless (indirect, via afraid)
,Verb frighten has 2 senses
  1. frighten, fright, scare, affright - cause fear in; "The stranger who hangs around the building frightens me"
    --1 is one way to stimulate, shake, shake up, excite, stir
    Derived form: noun frightening1
    Sample sentence:
    The bad news will frighten him
  2. frighten - drive out by frightening
    --2 is one way to
    chase away, drive out, turn back, drive away, dispel, drive off, run off
    Sample sentences:
    Somebody ----s somebody
    Something ----s somebody