Meaning of phlegmatism in English:

phlegmatism

Pronunciation /ˈflɛɡmətɪz(ə)m/

noun

  • Phlegmatic nature, character, or temperament; calmness, stolidity, absence of excitability.

Origin

Late 17th century; earliest use found in Randle Holme (1627–1700), herald painter. From phlegmat- + -ism.