The Collaborative International Dictionary of English v.0.48:

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.
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            I am the Almighty God.                --Gen. xvii.
                                                  1.
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   2. Great; extreme; terrible. [Slang]
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            Poor Aroar can not live, and can not die, -- so that
            he is in an almighty fix.             --De Quincey.
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   The Almighty, the omnipotent God. --Rev. i. 8.
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