Definition of monster
(Entry 1 of 2)
1a : an animal or plant of abnormal form or structure
a mythical monster a sea monster
b : one who deviates from normal or acceptable behavior or character
an immoral monster
2 : a threatening force
the same monster—Destiny … that rolls every civilization to doom— W. L. Sullivan
3a : an animal of strange or terrifying shape
visualize this scaleless monster, eight or nine feet long, sprawling in the shade by the side of the mud pools— W. E. Swinton
b : one unusually large for its kind
That truck is a monster.
4 : something monstrous especially : a person of unnatural or extreme ugliness, deformity, wickedness, or cruelty His father was a monster who beat his children for no reason.
5 : one that is highly successful
That movie was a monster at the box office.
monster
adjectiveDefinition of monster (Entry 2 of 2)
: enormous or impressive especially in size, extent, or numbers
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Time Traveler for monster
The first known use of monster was in the 14th century
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