Hormonal (adjective)

1. Of or relating to hormones.
2. Affected by hormones; influenced by hormones.
3. Characterized by intense or unstable emotions, mood swings.

Origin:

From hormone + -al, first recorded in english in 1920.

Examples:

1. Hormonal changes in adolescence can cause mood swings.
2. The hormonal imbalance caused severe acne.
3. She was going through a hormonal change.
4. The hormonal contraceptive can have side effects.
5. He was feeling hormonal, so he decided to take a walk and clear his head.