stoic
/ˈstō-ik/
noun
a member of a school of philosophy founded by Zeno of Citium about 300 b.c. holding that the wise man should be free from passion, unmoved by joy or grief, and submissive to natural law
one apparently or professedly indifferent to pleasure or pain
adjective
of, relating to, or resembling the Stoics or their doctrines
not affected by or showing passion or feeling; especially : firmly restraining response to pain or distress
Stoic logic
impassive stoic phlegmatic apathetic stolid mean unresponsive to something that might normally excite interest or emotion. impassive stresses the absence of any external sign of emotion in action or facial expression. stoic implies an apparent indifference to pleasure or especially to pain often as a matter of principle or self-discipline.