having temperamental and changeable moods

Moodiness: stems from lack of self mastery over thoughts and emotions and not seeing that all feelings and emotions are a choice and are caused by the way you think and not by any person or anything outside of self. All feelings, emotions are created by either fear or love. Ideal is to transcend all fear based thinking and feeling. This is what an enlightened being and integrated Spiritual Master embodies on Earth

a sullen gloomy feeling

The quality or state of being moody; specifically, liability to strange or violent moods.