Synonyms for fiendish
- adjective
Most common
Definitions
- adj. 1
Sinister; evil; like a fiend.
She had a fiendish smile that hinted at a cunning plan.
Related words
- Word family
- fiendishly
Example sentences
- infernal "It's a lie!" he shouted, "an infernal lie!"
- diabolical To err is human, but to persist is diabolical.
- devilish Why did Yuri decide to join this devilish trio?
- diabolic Tom masterminded a diabolic plot to kill his wife.
- conniving I'm very aware of his conniving ways.
Popularity over time
| Word | 1850 → 2019 | Trend |
|---|---|---|
| fiendish | rising | |
| infernal | rising | |
| diabolical | rising | |
| devilish | rising | |
| diabolic | steady | |
| conniving | rising |
Use in printed books, per decade from 1850 to 2019.
By length
- 4 letters
- evil2
- 6 letters
- wicked2, unholy3, malign2
- 7 letters
- vicious2, satanic3, demonic3, inhuman3, heinous2, hellish2, baleful2
- 8 letters
- sinister3, infernal3, devilish2, diabolic
- 9 letters
- malicious3, malignant3, atrocious3, conniving3, fiendlike
- 10 letters
- diabolical5, malevolent4, demoniacal
The small number after each word is its number of syllables (evil2 = 2 syllables).
In other languages
- Français
- machiavélique
- Italiano
- machiavellico