infernal
adjective /ɪnˈfɜːnl/
/ɪnˈfɜːrnl/
- [only before noun] (old-fashioned) extremely annoying
- Stop that infernal noise!
- (literary) connected with hell
- the infernal regions
Word Originlate Middle English: from Old French, from Christian Latin infernalis, from Latin infernus ‘below, underground’, used by Christians to mean ‘hell’, on the pattern of inferni (masculine plural) ‘the shades’ and inferna (neuter plural) ‘the lower regions’.