What does fiendish mean?
Fiendish means Sinister; evil; like a fiend..
Fiendish
/ˈfiːndɪʃ/ · adjective
Meaning
Sinister; evil; like a fiend..
Definitions by Sense
- Sinister; evil; like a fiend.
- Very difficult.
Example Sentences
The detective was puzzled by the fiendish plot to steal the diamonds.
She had a fiendish smile that hinted at a cunning plan.
The exam was filled with fiendish questions that made no sense.
a fiendish crossword puzzle
Synonyms for fiendish
Antonyms for fiendish
Related Words
Word Forms
- more fiendish
- most fiendish
Usage Notes
Choose a synonym only when it preserves the intended meaning, tone, and grammar of the full sentence.
Practice and Learn More
Frequently Asked Questions
What is a synonym for fiendish?
Common synonyms include conniving, evil, wicked, infernal.
What is the opposite of fiendish?
The opposite depends on the specific sense.
How do you use fiendish in a sentence?
The detective was puzzled by the fiendish plot to steal the diamonds.
Sources & Attribution
FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0
Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.