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Synonyms

horrendous

American  
[haw-ren-duhs, ho-] / hɔˈrɛn dəs, hɒ- /

adjective

  1. shockingly dreadful; horrible.

    a horrendous crime.

    Synonyms:
    hideous, frightful, appalling

horrendous British  
/ hɒˈrɛndəs /

adjective

  1. another word for horrific

"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

Usage

What does horrendous mean? Horrendous is popularly used to mean extremely bad—awful, dreadful, or horrible. It can also mean literally causing horror—horrifying or horrific, as in horrendous violence. Example: If you’re wondering what cake tastes like when you accidentally use salt instead of sugar, it’s horrendous—completely disgusting and inedible.

Other Word Forms

Derived Forms

Etymology

Origin of horrendous

1650–60; < Latin horrendus dreadful, to be feared (gerund of horrēre to bristle, shudder), equivalent to horr- (akin to hirsute ) + -endus gerund suffix

Explanation

Bad luck, an injury, a mistake, an unfortunate outfit, or a crime — anything can be called horrendous if it causes such dread or fear that you can barely even think about it. If you’ve ever encountered something horrendous, you won’t be surprised to learn that the word traces back to the Latin word horrere, meaning "to bristle with fear, shudder." That’s a good way to think about horrendous things — they cause you to shudder. You can use the word to describe any type of thing — people, ideas, actions, and so on — but save it for those things that are not merely bad but instead are truly horrifying.

Keep Reading on Vocabulary.com

Vocabulary lists containing horrendous

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.

Welsh said: "These adverts are pumped at you when you've gone through the most horrendous circumstances - it's like walking through the door and someone's put a cot in your front room."

From BBC • Jun. 3, 2026

“He’s sitting on a volcano of emotions that he hasn’t dealt with. He does some pretty horrendous things, but I think people softened up to Morrow because they saw that human side.”

From Los Angeles Times • Jun. 2, 2026

Part of what makes Callais so devastating is the way it builds on previous horrendous misinterpretations.

From Slate • May 19, 2026

The deaths of three young women in the sea in Brighton were "tragic and horrendous", the city's council leader has said.

From BBC • May 14, 2026

It had been a horrendous, con-fusing, emotional day.

From "Shelter (Book One): A Mickey Bolitar Novel" by Harlan Coben

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