considered to be shocking and unacceptable because it is morally wrong or unfair 丑恶的；道德败坏的；骇人的 a monstrous lie/injustice 弥天大谎；骇人听闻的不公
very large 巨大的 a monstrous wave 巨浪
very large, ugly and frightening 巨大丑陋的；庞大骇人的 a monstrous figure/creature 巨大的人影；骇人的动物
Word Originlate Middle English (in the sense ‘strange or unnatural’): from Old French monstreux or Latin monstrosus, from monstrum ‘portent or monster’, from monere ‘warn’. Current senses date from the 16th cent.