[ mon-struhs ]
/ ˈmɒn strəs /


frightful or hideous, especially in appearance; extremely ugly.
shocking or revolting; outrageous: monstrous cruelty.
extraordinarily great; huge; immense: a monstrous building.
deviating grotesquely from the natural or normal form or type.
having the nature or appearance of a fabulous monster.


extremely; exceedingly; very.

Origin of monstrous

First recorded in 1350–1400; Middle English word from Latin word mōnstrōsus. See monster, -ous

Related forms

mon·strous·ly, adverbmon·strous·ness, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for monstrous

British Dictionary definitions for monstrous


/ (ˈmɒnstrəs) /


abnormal, hideous, or unnatural in size, character, etc
(of plants and animals) abnormal in structure
outrageous, atrocious, or shockingit is monstrous how badly he is treated
hugea monstrous fire
of, relating to, or resembling a monster

Derived Forms

monstrously, adverbmonstrousness, noun
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