...the most monumentally hideous night of my life.
我生命里最可怕的一夜
2ADJ-GRADED [usually ADJ n](书或音乐)丰碑式的,意义深远的,不朽的 If you describe a book or musical work as monumental, you are emphasizing that it is very large and impressive, and is likely to be important for a long time. (书或音乐)丰碑式的,意义深远的,不朽的 [emphasis]