Word: 沉闷 (chénmèn) Traditional: 沉悶 沉闷 dictionary entry chénmèn oppressive (of weather); heavy; depressed; not happy; dull; muffled Full dictionary entry for 沉闷 Example sentences using 沉闷 2 sentences, showing page 1 of 1. 这位老教授的讲座冗长而沉闷。 Zhèwèi lǎo jiàoshòu de jiǎngzuò rǒngcháng ér chénmèn. The old professor's lectures are long-winded and ponderous. 雨前的空气特别沉闷。 Yǔqián de kōngqì tèbié chénmèn. The air is especially oppressive before the rain.