terrible

adjective
  1. 1

    Dreadful; causing terror, alarm and fear; awesome

    โ€œThe witch gave him a terrible curse.โ€

  2. 2

    Formidable, powerful.

  3. 3

    Intense; extreme in degree or extent.

    โ€œHe paid a terrible price for his life of drinking.โ€

  4. 4

    Unpleasant; disagreeable.

    โ€œThe food was terrible, but it was free.โ€

  5. 5

    Very bad; lousy.

    โ€œWhatever he thinks, he is a terrible driver.โ€

Antonyms

adverb
  1. 1

    In a terrible way; to a terrible extent; terribly; awfully.

Source: https://en.wiktionary.org/wiki/terrible