Mumpsimus (n)
mump-si-mus
A traditional custom or idea adhered to although shown to be unreasonable.
A person who obstinately adheres to old customs or ideas in spite of evidence that they are wrong or unreasonable
Example sentences
“Oh she’s such a mumpsimus, she’d still have you believe getting wet gives you a cold. ”
“It doesn’t matter how much science proves itself, he holds on to the mumpsimus of the Earth being flat.”
Word of the Day – Wonky
February 1, 2026
Word of the Day – Wonky
Wonky (adj) won-kee Not straight or balanced, off kilter. First recorded in 1915–20; perhaps variant…
Word of the Day – Dormiveglia
January 31, 2026
Word of the Day – Dormiveglia
Word of the Day - Dormiveglia (verb) (Italian) dor-mee-veh-lya
Word of the Day – Dissimulate
January 30, 2026
Word of the Day – Dissimulate
Word of the Day - Dissimulate (verb) dis-im-yu-layt
Word of the Day – Somatic
January 29, 2026
Word of the Day – Somatic
Word of the Day - Somatic (adj) soh-mat-ik
Word of the Day – Circumambient
January 28, 2026
Word of the Day – Circumambient
Word of the Day - Circumambient (adj) sur-kum-am-bee-unt
Word of the Day – Raconteur
January 27, 2026
Word of the Day – Raconteur
Word of the Day - Raconteur (noun) ra-kon-ter