monotony

n. /məˈnɑː.t̬ən.i/ C1

单调；千篇一律

A lack of variety that causes boredom; dull repetition.

仙境例句

To break the monotony of being stuck in the house, Alice tried to remember her lessons.

被困在屋子里实在单调，爱丽丝就努力回想她学过的功课来解闷。