mon·strous
ˈmän(t)-strəs 
1
: having extraordinary often overwhelming size : gigantic
stuffing a monstrous sandwich down his throat—
Mike Flaherty
Mike Flahertya monstrous skyscraper
2
a
: extraordinarily ugly or vicious : horrible
a monstrous crime
monstrous mayhem
b
: shockingly wrong or ridiculous
the legend assumed monstrous proportions—Louis Untermeyer
Louis Untermeyera monstrous miscalculation
3
: deviating greatly from the natural form or character : abnormal
a monstrous melon
4
: very great
—used as an intensive
a monstrous hammering on his door—G. D. Brown
G. D. Browna monstrous hangover
5
monstrously
adverb
monstrousness
noun
Examples of monstrous in a Sentence
Adjective
It was monstrous of him to keep the truth from them all those years.
a monstrous melon that was clearly not fit to eat
Adverb
a monstrous pretty gal, she was
Recent Examples on the Web
Kevin Dolak, HollywoodReporter, 20 July 2025
Sometime in their cosmic lives, two gigantic black holes crashed into one another to form something even more monstrous: A black hole equal to the size of 240 of Earth's sun.
—Eric Lagatta, USA Today, 16 July 2025
Part 1 ends with Lu aligned with Sakamoto and Shin upon finding out that a team of monstrous assassins has been dispatched to kill Sakamoto.
—Allison Degrushe Published, EW.com, 14 July 2025
The lifestyles of insects can be monstrous, at least from our perspective.
—Avery Hurt, Discover Magazine, 14 July 2025
See All Example Sentences for monstrous
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Adjective
Attack of the Devil Shark Legend meets biology in this deep dive into the myth of a monstrous shark blamed for the death of a man attacked in St. Martin.
—Kevin Dolak, HollywoodReporter, 20 July 2025
Sometime in their cosmic lives, two gigantic black holes crashed into one another to form something even more monstrous: A black hole equal to the size of 240 of Earth's sun.
—Eric Lagatta, USA Today, 16 July 2025
Part 1 ends with Lu aligned with Sakamoto and Shin upon finding out that a team of monstrous assassins has been dispatched to kill Sakamoto.
—Allison Degrushe Published, EW.com, 14 July 2025
The lifestyles of insects can be monstrous, at least from our perspective.
—Avery Hurt, Discover Magazine, 14 July 2025
See All Example Sentences for monstrous
Cite this Entry
“Monstrous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/monstrous. Accessed 26 Jul. 2025.
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