frightful

adjective

  1. 1

    provoking horror

    an atrocious automobile accident

    a frightful crime of decapitation

  2. 2

    extremely distressing

    fearful slum conditions

    a frightful mistake

  3. 3

    extreme in degree or extent or amount or impact

    in a frightful hurry

    spent a frightful amount of money

Synonyms

Also useful for “frightful”:Unscrambler