noun
mood
MOOD/muːd/
A temporary state of mind or feeling.
Her mood changes from glum to cheerful at the kitchen table.

Etymology
Old English mod covered inner qualities such as courage, pride, and spirit as well as a person's frame of mind. The modern sense focuses on someone's emotional condition at a particular time.
In context
some common symptoms include yawning, feeling unusually tired, and experiencing mood swings. You might feel irritable or even a bit down during this time.
More examples
- He was in a thoughtful mood.
- The music suited her quiet mood.
- Their moods improved after a good meal.
Forms
mood · moods
moody adjective — Prone to changes in feeling.