Adjective

(en adjective)

hideous or frightful

* Shakespeare

So bad a death argues a monstrous life.

enormously large

a monstrous height

a monstrous ox

freakish or grotesque

* John Locke

a monstrous birth

* Jeremy Taylor

He, therefore, that refuses to do good to them whom he is bound to love is unnatural and monstrous in his affections.

of, or relating to a mythical monster; full of monsters

* Milton

Where thou, perhaps, under the whelming tide / Visitest the bottom of the monstrous world.

(obsolete) marvellous; strange

Adjective

(en adjective)

Full of venom.

Toxic; poisonous.

Noxious; evil.

Malignant; spiteful; hateful.

Producing venom (poison usually injected into an enemy or prey by biting or stinging) in glands or accumulating venom from food.

powerful

* {{quote-news

, year=2011 , date=December 10 , author=David Ornstein , title=Arsenal 1 - 0 Everton , work=BBC Sport citation , page= , passage=Arsenal pressed forward again after half-time but other than a venomous Walcott shot that Howard repelled with a fine one-handed save, the hosts offered little cutting edge.}}