How to say "almighty" in Japanese

• オールマイティCommon
  na-adjective, nounThe katakana borrowing of English 'almighty'. Use it for the all-powerful, omnipotent sense of the English word — someone or something holding power over everything.
• 万能ばんのうJLPT N1approx.Common
  no-adjectiveCovers the all-powerful, omnipotent sense of 'almighty', and also means all-round or versatile — an all-round athlete, for example. For that versatility meaning, which English 'almighty' does not have, this is the word.
  人間にんげんは神かみほど万能ばんのうではない。↗

  Man is not as almighty as God.

For 'almighty' in its all-powerful, omnipotent sense, 「オールマイティ」 and 万能 both work; when you mean all-round versatility — not a sense of English 'almighty' — use 万能.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• オールマイティalmighty
• 全能ぜんのうalmighty
• 万能ばんのうall-powerful