1. A temporary state of mind or feeling, as evidenced by the tendency of one’s thoughts: news that put us in a good mood with happy thoughts of the future. 2. A pervading impression on the feelings of an observer: the somber mood of the music. 3. An instance or spell of sulking or angry behavior: His brother‘s visit lifted him out of his sullen mood. 4. Inclination; disposition: I’m in the mood for a drink. 5. The chronic state of mind that reflects the most common feeling a person experiences most of the time.