Find Synonyms

fiendishly Synonyms

Another word for fiendishly

Choosing another word for fiendishly depends on context, so the 10 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adverb (Context 1)

To an extreme, intense, or frustratingly high degree, especially regarding difficulty or complexity.

Usage Example

"The professor designed a devilishly clever puzzle that took the students several weeks to solve."

Strongest
devilishly
diabolically
Strong
wickedly
exceedingly
intensely

• adverb (Context 2)

In a wicked, cruel, or malicious manner.

Usage Example

"In the classic play, the villain plotted diabolically against the unsuspecting royal family."

Strongest
diabolically
demonically
Strong
maliciously
cruelly
malevolently
viciously

Opposites of fiendishly

The opposite of fiendishly shifts depending on context. Common opposites include:

angelically
benevolently
slightly
mercifully
easily
kindly
simply
compassionately
See all opposites of fiendishly

• Nearby Words

fieldworker
fiend
fiendish
fiendishly
fierce
fierce snake
fiercely

Cite this Entry

Wordmom. (2026). Synonyms for Fiendishly. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/fiendishly
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