mon|stros|i|ty «mon STROS uh tee», noun, plural -ties.
1. = monster. (Cf. ↑monster)
2. the state or character of being monstrous: »
Figurative. ... the multitude…that numerous piece of monstrosity, which, taken asunder, seem men, and the reasonable creatures of God, but, confused together, make but one great beast and monstrosity more prodigious than Hydra (Sir Thomas Browne).
╂[< Late Latin mōnstrōsitās < Latin mōnstrōsus monstrous]
Useful english dictionary. 2012.