In*fer"nal (?), a. [F. infernal, L. infernalis, fr. infernus that which lies beneath, the lower. See Inferior.]
1.
Of or pertaining to or suitable for the lower regions, inhabited, according to the ancients, by the dead; pertaining to Pluto's realm of the dead, the Tartarus of the ancients.
The Elysian fields, the infernal monarchy.
Garth.
2.
Of or pertaining to, resembling, or inhabiting, hell; suitable for hell, or to the character of the inhabitants of hell; hellish; diabolical; as, infernal spirits, or conduct.
The instruments or abettors in such infernal dealings.
Addison.
Infernal machine, a machine or apparatus maliciously designed to explode, and destroy life or property. -- Infernal stone (lapis infernalis), lunar caustic; formerly so called. The name was also applied to caustic potash.
Syn. -- Tartarean; Stygian; hellish; devilish; diabolical; satanic; fiendish; malicious.
© Webster 1913.
In*fer"nal, n.
An inhabitant of the infernal regions; also, the place itself.
[Obs.]
Drayton.
© Webster 1913.