1. One who is seemingly indifferent to or unaffected by joy, grief, pleasure, or pain.
2. Stoic A member of an originally Greek school of philosophy, founded by Zeno of Citium about 308 BC, believing that God determined everything for the best and that virtue is sufficient for happiness. Its later Roman form advocated the calm acceptance of all occurrences as the unavoidable result of divine will or of the natural order.
adj. also sto·i·cal (-ĭ-kəl)
1. Seemingly indifferent to or unaffected by pleasure or pain; impassive: "stoic resignation in the face of hunger" (John F. Kennedy).
2. Stoic Of or relating to the Stoics or their philosophy.
[Middle English Stoic, a Stoic, from Latin Stōicus, from Greek Stōikos, from stoā (poikilē), (Painted) Porch, where Zeno taught; see stā- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.