monstrous
Americanadjective
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frightful or hideous, especially in appearance; extremely ugly.
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shocking or revolting; outrageous.
monstrous cruelty.
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extraordinarily great; huge; immense.
a monstrous building.
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deviating grotesquely from the natural or normal form or type.
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having the nature or appearance of a fabulous monster.
adverb
adjective
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abnormal, hideous, or unnatural in size, character, etc
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(of plants and animals) abnormal in structure
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outrageous, atrocious, or shocking
it is monstrous how badly he is treated
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huge
a monstrous fire
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of, relating to, or resembling a monster
Synonym Usage
See gigantic.
Other Word Forms
Etymology
Origin of monstrous
First recorded in 1350–1400; Middle English word from Latin word mōnstrōsus. See monster, -ous
Explanation
Monstrous is an adjective that describes something gross or shocking. It can refer to the size, shape, or general look of something. If your face or body is monstrous, it's misshapen and horrifying to look at. The word monstrous describes something that you'd like to avoid looking at, if at all possible. The word comes from the Latin monstruosus, which means "unnatural, deviating from the natural order, hideous." When discussing size, monstrous means that something or someone is so huge it's frightening. Monstrous can also describe someone or something that's extremely cruel or brutal, like a monstrous dictator or monstrous lies.
Vocabulary lists containing monstrous
"The Crucible" -- Vocabulary from all 4 Acts
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Metamorphosis
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Words from Shakespearean Insults
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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.
Gavin Grahovac tagged Johnson for a monstrous solo home run to cut USC’s lead to 9-2 in the fifth.
From Los Angeles Times ● Jun. 1, 2026
Public Citizen, a nonprofit consumer advocacy group, called it a "monstrous theft of taxpayer resources."
From Barron's ● May 18, 2026
"They are heading into a free week to prepare for a monstrous clash next weekend."
From BBC ● Apr. 12, 2026
But that may have been the actor’s way of absolving himself of his monstrous off-screen behavior.
From The Wall Street Journal ● Mar. 12, 2026
There were figures and faces, some human, some monstrous, and they had some kind of life and lightness to them, like the person who had drawn them could give them breath if he chose.
From "Breadcrumbs" by Anne Ursu
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
