phlegmatic
adjective
UK/fleɡˈmæt.ɪk/
US/fleɡˈmæt̬.ɪk/
Definitions of phlegmatic adjective
A phlegmatic person is characterized by their tendency to not easily display emotions or excitement.
She maintains a calm and phlegmatic attitude, even under pressure.
He is known for his calm and phlegmatic disposition.
His phlegmatic response to the chaotic situation was impressive.