We were stuck in a disgusting room for hours.

disgusting 是形容词，由动词 disgust（使厌恶）加上后缀 -ing 构成。disgust 来自拉丁语，dis- 表示"否定"，gust 与 taste（味道）相关，字面意思是"味道不好"。disgusting 表示"令人作呕的、极其肮脏的"，带有强烈负面情绪。