Satanic vs Monstrous - What's the difference?

Satanic is a related term of monstrous.

is that satanic is satanic while monstrous is hideous or frightful.

(en adjective)

Evil, fiendish, devilish or diabolical.

Of or pertaining to any form of Satanism.

(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

* See also