Dictionary definition · infernal
noun
- an inhabitant of Hell"his roar made the infernals quake"
adjective
- characteristic of or resembling Hell"infernal noise"
- extremely evil or cruel; expressive of cruelty or befitting hell"something demonic in him — something that could be cruel"
- expletives used informally as intensifiers"he's a blasted idiot"
- of or pertaining to or characteristic of a very uncontrolled and intense fire"infernal heat"
- being of the underworld"infernal regions"
Source: Open English WordNet (CC BY 4.0).