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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:

An impressive 32% of immigrants from the Democratic Republic of the Congo—war-torn and ravaged—have college degrees, as do 19% from hellish Somalia.

From The Wall Street Journal Aug. 10, 2026

Around her stood people in T-shirts with the same illustration featured on the church’s bulletin that week: a phoenix representing Boyle Heights rising from the flames of a hellish warehouse.

From Los Angeles Times Aug. 8, 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

I step out of the hellish clothing shop, and a girl hands me a flyer for a concert in the cafe on the town square.

From "What the Night Sings" by Vesper Stamper

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