sto·ic / ˈstō-ik/ • n. 1. a person who can endure pain or hardship without showing their feelings or complaining.2. (Stoic) a member of the ancient philosophical school of Stoicism.• adj. 1. another term for stoical.2. (Stoic) of or belonging to the Stoics or their school of philosophy.

Stoic pert. to the school of philosophers founded by Zeno (c.300 B.C.); also sb. XVI. — L. stōicus — Gr. stōikós, f. stod́ the Porch in which Zeno taught at Athens.
Also Stoical (-AL1) XV.