phlegmatic

/flɛɡˈmætɪk/

noun

Meaning

One who has a phlegmatic disposition.

adjective

Meaning

Not easily excited to action or passion; calm; sluggish.
Abounding in phlegm.
"a phlegmatic constitution"
Generating, causing, or full of phlegm.

Synonyms

apathetic,

cold-blooded,

sluggish,

stoic,

unflappable