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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:

"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

There were fantastic moments, and there were hellish moments.

From Salon Jun. 1, 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

I’ve been doing daily art journalism for 45 years — 36 of them at The Times, with 2,195 bylines — so I’m about to find out whether this quitting will also be hellish.

From Los Angeles Times Dec. 1, 2025

Mark shivers, the chill across his skin a fresh relief from the hellish heat that has become his life.

From "The Kill Order (Maze Runner, Book Four; Origin)" by James Dashner

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