te̲u̲flisch
A
adjective
1 devilish, fiendish ‹plan, trick, etc.›; fiendish, diabolical ‹laughter, pleasure, etc.›;
das Teuflische an dieser Krankheit the devilish or diabolical thing about this illness
2 (groß, intensiv) terrible ; dreadful
B
adverb
1 fiendishly; diabolically
2 terribly ; dreadfully