/ɪnˈfɜːrnəl/ i-n-FER-nəl

Definitions

1. adjective

of or relating to hell or the devil; extremely unpleasant or unpleasantly hot

“The infernal noise from the construction site kept me awake at night.”

2. noun

something that is extremely unpleasant or unpleasantly hot

“The infernal heat made it hard to sleep in the desert.”

3. adverb

in a manner that is extremely unpleasant or unpleasantly hot

“The infernal way they treated the staff made it hard for them to keep their jobs.”