Treiskaidekaphobia
noun ·Rare ·Advanced level
Definitions
- 1 Alternative form of triskaidekaphobia: fear of the number 13. alt-of, alternative, uncommon, uncountable
"Our own feeling about thirteen, especially when joined with Friday, has added another to the long list of phobias; treiskaidekaphobia, or "fear of the number thirteen" (some of the other phobias are the well-known claustro-, acro-, and agora-, fear of being closed in, of heights, of open spaces, respectively; less known are ailurophobia, "fear of cats," iatrophobia, "fear of doctors," nucleomitotophobia,^([sic]) "fear of atomic bombs," mageiricophobia, "fear of having to cook," and, recalling FDR, phobophobia, "fear of fear itself.")"
Example
More examples"Our own feeling about thirteen, especially when joined with Friday, has added another to the long list of phobias; treiskaidekaphobia, or "fear of the number thirteen" (some of the other phobias are the well-known claustro-, acro-, and agora-, fear of being closed in, of heights, of open spaces, respectively; less known are ailurophobia, "fear of cats," iatrophobia, "fear of doctors," nucleomitotophobia,^([sic]) "fear of atomic bombs," mageiricophobia, "fear of having to cook," and, recalling FDR, phobophobia, "fear of fear itself.")"
Etymology
From Ancient Greek τρεισκαίδεκα (treiskaídeka, “thirteen”) + -phobia.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.