Source : Webster's Revised Unabridged Dictionary (1913)

Ungodly \Un*god"ly\, a.
   1. Not godly; not having regard for God; disobedient to God;
      wicked; impious; sinful.

   2. Polluted by sin or wickedness.

            The hours of this ungodly day.        --Shak.

Source : WordNet®

ungodly
     adj 1: characterized by iniquity; wicked because it is believed to
            be a sin; "iniquitous deeds"; "he said it was sinful
            to wear lipstick"; "ungodly acts" [syn: {iniquitous},
            {sinful}]
     2: lacking piety and reverence for a god [syn: {impious}]
     [also: {ungodliest}, {ungodlier}]