Dreary/ˈdrɪri/ Definition 1 of 2Pro Tip 1/3Weather Connection Often used to describe unpleasant weather that impacts mood. The sky was a dreary expanse of grey all weekend. Pro Tip 2/3Boredom Feeling Implies that something is so uninteresting it becomes tiresome. He found the lecture dreary; it seemed to drag on forever. Pro Tip 3/3Subjective View What's considered 'dreary' can vary depending on personal feelings. She loves rain, but her brother finds rainy days dreary.