Dictionary.com
Thesaurus.com
Synonyms

hellish

American  
[hel-ish] / ˈhɛl ɪʃ /

adjective

  1. of, like, or suitable to hell; infernal; vile; horrible.

    It was a hellish war.

  2. miserable; abominable; execrable.

    We had a hellish time getting through traffic.

  3. devilishly bad.

    The child's behavior was hellish most of the day.


hellish British  
/ ˈhɛlɪʃ /

adjective

  1. of or resembling hell

  2. wicked; cruel

  3. informal very difficult or unpleasant

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. informal (intensifier)

    a hellish good idea

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of hellish

First recorded in 1520–30; hell + -ish 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

With a massive shock of red hair, bone-white makeup and oversized brow, Curry looked like a hellish Bozo the Clown.

From Los Angeles Times ● Aug. 26, 2026

"Ferns responded to and delivered the fuel that fanned the flames, triggering repeated massive wildfires. A truly hellish world."

From Science Daily ● Jul. 22, 2026

"It must have been hellish in the forest at the time."

From BBC ● Jun. 11, 2026

As a band played “The Blue Danube,” she blocked out her hellish surroundings and imagined herself on stage in Budapest, dancing to Tchaikovsky’s “Romeo and Juliet.”

From The Wall Street Journal ● May 14, 2026

The hellish whistle could be heard gradually disappearing in the distance.

From "Cheaper by the Dozen" by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey

Vocabulary.com logo
by dictionary.com

Just like flashcards, but way more fun

Don't take our word for it. Leave the boring studying behind and join VocabTrainer today. You'll learn even faster and never look back.

Take me to Vocabulary.com