Almighty \Al*might"y\ ([add]l*m[imac]t"[y^]), a. [AS. ealmihtig, [ae]lmihtig; eal (OE. al) all + mihtig mighty.] 1. Unlimited in might; omnipotent; all-powerful; irresistible. I am the Almighty God. --Gen. xvii. 1. 2. Great; extreme; terrible. [Slang] Poor Aroar can not live, and can not die, -- so that he is in an almighty fix. --De Quincey. {The Almighty}, the omnipotent God. --Rev. i. 8.