Mon″strous (?), a. [OE. monstruous, F. monstrueux, fr. L. monstruosus, fr. monstrum. See Monster.] 1. Marvelous; strange.
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.
Where thou, perhaps, under the whelming tide
Visitest the bottom of the monstrous world. Milton.