almighty

adjective3

1. •
   [after a noun] having power without any end, and able to do anything

   • The Holy Bible, […] (King James Version), London: […] Robert Barker, […], 1611, →OCLC, Genesis 17:1: “I am the Almightie God.”
2. •
   Having very great power, influence, etc.

   • The almighty press condemned him without trial.
3. •
   (slang) Great; extreme; terrible.

   • I heard an almighty crash and ran into the kitchen to see what had happened.

adverb1

1. •
   (informal, slang) Extremely; thoroughly.

   • Now that must have been almighty careless of someone, Wynn. — 1923

noun1

1. •
   God, the supreme being.

   • The Almighty has smiled on us and blessed with good fortune.