Of or relating to the Devil or a devil; originating in or involving the Devil or a devil. Also: like or characteristic of the Devil or a devil…

= fiendish, adj.

Having the evil qualities of the serpent; pertaining to the Serpent as the tempter of humankind; diabolical, Satanic; devilishly wily or cunning.

Characteristic of the Devil or a devil; worthy of or befitting a devil; execrable, damnable.

Reminiscent or characteristic of a devil in nature or behaviour; devilish, fiendish; evil, wicked.

Apparently: unclean, defiled.

Reminiscent or characteristic of a devil in nature or behaviour; appropriate to a devil; devilish, fiendish; evil, wicked.

Characteristic of, befitting, or reminiscent of Satan in nature or behaviour; diabolical, devilish, fiendish; wicked, evil, cruel.

Of or relating to a demon or demons; of the nature of a demon; = demoniac, adj. 2. In early use also: †that worships demons (obsolete).

Like a serpent; = serpentine, adj.

= serpentine, adj. 2.

Transformed into a devil; made devilish or wicked. Also: portrayed as a devil.

Characteristic of a fiend.

= devilish, adj. (in various senses).