fiendish

adjective fiend·ish \ ˈfēn-dish \
Updated on: 17 Apr 2018

Definition of fiendish

1 : perversely diabolical
  • took a fiendish pleasure in hurting people
2 : extremely cruel or wicked
3 : excessively bad, unpleasant, or difficult
  • fiendish weather

fiendishly

adverb

fiendishness

noun

Examples of fiendish in a Sentence

  1. He takes a fiendish delight in hurting people.

  2. a fiendish delight in playing cruel tricks

Recent Examples of fiendish from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'fiendish.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of fiendish

1529

in the meaning defined at sense 1

See Words from the same year
NEW! Time Traveler

FIENDISH Defined for English Language Learners

fiendish

Definition of fiendish for English Language Learners

  • : very evil or cruel

  • : extremely bad, unpleasant, or difficult



Seen and Heard

What made you want to look up fiendish? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to treat with excessive attention

Get Word of the Day daily email!

Test Your Vocabulary

Odd Habits and Quirks Quiz

  • image1926873504
  • Which of the following best describes an easily irritated person?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!