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.

So this time around, after a hellish year for myself, and frankly, the entire country, I decided Vitamin D was a requirement: I needed to go somewhere warm.

From Salon • Feb. 2, 2026

Those who survived the hellish conditions within these forts were then forced onto ships bound for the Americas.

From The Wall Street Journal • Dec. 7, 2025

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

Sections of charred scaffolding fell from the burning apartment blocks in hellish scenes late on Wednesday, as flames inside apartments sometimes belched out through windows into a night sky that glowed orange.

From Barron's • Nov. 27, 2025

“Come on. Get up and talk to me. I’m bored. I’m hyper. I don’t want to go home to Claire and her hellish Saturday mood swings.”

From "Ask the Passengers" by A.S. King

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "hellish" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com