Devilish
From BiblePortal Wikipedia
King James Dictionary [1]
Devilish, a.
1. Partaking of the qualities of the devil diabolical very evil and mischievous malicious as a devilish scheme devilish wickedness. 2. Having communication with the devil pertaining to the devil. 3. Excessive enormous in a vulgar and ludicrous sense as a devilish cheat.
Webster's Dictionary [2]
(1): ( a.) Resembling, characteristic of, or pertaining to, the devil; diabolical; wicked in the extreme.
(2): ( a.) Extreme; excessive.