monstrous

[mon-struhs] / ˈmɒn strəs /

ADJECTIVE

unnatural, shocking

Synonyms

STRONGEST

atrocious dreadful egregious freakish frightful grotesque gruesome heinous hideous horrendous horrible horrifying inhuman intolerable obscene odious outrageous preposterous terrible vicious

WEAK

abnormal desperate devilish diabolical disgraceful evil fiendish flagitious foul hellish loathsome morbid ominous satanic scandalous teratoid uncanny unusual

Antonyms

STRONGEST

beautiful delightful glorious great inoffensive magnificent pleasant pleasing wonderful

WEAK

common expected little miniature natural ordinary small standard tiny

ADJECTIVE

very large

Synonyms

STRONGEST

colossal enormous gargantuan gigantic huge immense impressive magnificent mammoth massive monumental towering tremendous

WEAK

cracking elephantine fantastic giant grandiose great prodigious stupendous titanic vast whopping

Antonyms

STRONGEST

dwarfed insignificant little miniature miniscule minute small teeny tiny unimportant unimpressive

WEAK

average common expected natural ordinary standard

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.

We know we are not monsters, but we are equally sure that we have done monstrous things.

From Slate • Mar. 16, 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

The Russian foreign ministry described the strike as a "monstrous crime against the peaceful population".

From Barron's • Mar. 11, 2026

Only Byrne’s flashes of humor and desperately flailing humanity keep her on this side of monstrous.

From Los Angeles Times • Feb. 25, 2026

“I can be your monstrous partner in crime!”

From "A Monster of a Mystery (The Hardy Boys: Secret Files, #5)" by Franklin W. Dixon