monstrous

monstrous is an Adverb

Definition:

[1] Marvelous; strange. [Obs.]

[2] Having the qualities of a monster; deviating greatly from the natural form or character; abnormal; as, a monstrous birth. Locke. He, therefore, that refuses to do good to them whom he is bound to love ... is unnatural and monstrous in his affections. Jer. Taylor.

[3] Extraordinary in a way to excite wonder, dislike, apprehension, etc.; -- said of size, appearance, color, sound, etc.; as, a monstrous height; a monstrous ox; a monstrous story.

[4] Extraordinary on account of ugliness, viciousness, or wickedness; hateful; horrible; dreadful. So bad a death argues a monstrous life. Shak.

[5] Abounding in monsters. [R.] Where thou, perhaps, under the whelming tide Visitest the bottom of the monstrous world. Milton.