Mōn'stroŭs1, a.
a. [Fr. monstrueux, Pr. mostruos, Sp. & Pg. monstruoso, It. mostroso, mostruoso, Lat. monstrosus, monstruosus, from monstrum. See MONSTER.]
Sense 1. Having the qualities of a monster; deviating greatly from the natural form; out of the common course of nature; abnormal; as, a monstrous birth or production.
He, therefore, that refuses to do good to them whom he is bound to love . . . is unnatural and monstrous in his affections. Bp. Taylor.
Sense 2. Enormous; huge; extraordinary; wonderful; marvelous; as, a monstrous height; a monstrous tree or mountain. Pope.
Sense 3. Shocking to the sight or other senses; hateful; horrible; dreadful.
Sense 4. Abounding in monsters. [Rare.]
Where thou, perhaps, under the whelming tide, Visitest the bottom of the monstrous world. Milton.