fiendishly
adverb
informaluk/ˈfiːn.dɪʃ.li/us/ˈfiːn.dɪʃ.li/extremely:
极其fiendishlydifficult极其困难
Synonym
devilishly
Linguistics: very & extreme
- abjectly
- abundantly
- beyond
- biblical
- blankly
- completely
- desperately
- extreme
- highly
- jolly
- positive
- rank
- raving
- smack
- spectacularly
- such
- terrible
- unutterably
- veritably
- wonderfully