Definition of monstrous in English:

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Pronunciation: /ˈmänstrəs/


1Having the ugly or frightening appearance of a monster: monstrous, bug-eyed fish
More example sentences
  • She may have had a beautiful, attractive body but once the fan went down, you would see a horrible, gruesome, monstrous, ugly face.
  • Overhead them was a huge, monstrous and extremely ugly bird drooling over them.
  • Then, bursting out from behind the trees, the same monstrous face appeared beneath a dark hood.
grotesque, hideous, ugly, ghastly, gruesome, horrible, horrific, horrifying, grisly, disgusting, repulsive, repellent, dreadful, frightening, terrifying, malformed, misshapen
informal butt ugly
1.1(Of a person or an action) inhumanly or outrageously evil or wrong: he wasn’t lovable, he was monstrous and violent it is a monstrous waste of money
More example sentences
  • These bogus safety issues and courses are a monstrous waste of money.
  • To those involved in any way with this monstrous evil, I say to you that this is your first and only chance.
  • There was something incredibly monstrous about the inhuman way it could not be stopped.
appalling, heinous, egregious, evil, wicked, abominable, terrible, horrible, dreadful, vile, outrageous, shocking, disgraceful;
unspeakable, despicable, vicious, savage, barbaric, barbarous, inhuman, beastly
1.2Extremely and dauntingly large: the monstrous tidal wave swamped the surrounding countryside
More example sentences
  • I stood there in the middle of the hall watching a huge - enormous - monstrous suitcase.
  • Charlie's dad is an immense, monstrous presence at the centre of the film.
  • A beautiful dive at 20m, I saw huge coral formations and monstrous sea fans.



Pronunciation: /ˈmänztrəslē/
Example sentences
  • The proposals - which were widely condemned as monstrously intrusive and constituting a gross infringement of privacy and liberty - have been withdrawn for further consultation.
  • In the very next paragraph, he remarks: ‘It is monstrously premature to think that the threat has passed.
  • The public sector is still monstrously big and squeezes out the private sector.


Example sentences
  • The Nazi crimes, it seems to me, explode the limits of the law; and that is precisely what constitutes their monstrousness.
  • Probably they have become numb to the monstrousness of their actions.
  • The word homicide is wholly inadequate to convey the monstrousness of such a culture.


Late Middle English (in the sense 'strange or unnatural'): from Old French monstreux or Latin monstrosus, from monstrum (see monster). Current senses date from the 16th century.

For editors and proofreaders

Syllabification: mon·strous

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