Meanings
- colloquialhumorousuncountableForgetfulness in a pregnant woman or mother.
Just chalk it up to “momnesia” and write things down when you really need to remember them.
2011, Alison Sweeney, Christie Matheson, The Mommy Diet, Gallery Books, →ISBN, page 352 more examples
It's difficult when we're young mothers—in the throes of momnesia, barely able to remember where we're supposed to be in two minutes (let alone two days)—to plan time for, much less seriously think about, our relationships.
2009, Lisa T. Bergen, Life on Planet Mom: A Down-to-Earth Guide to Your Changing Relationships, Revell, →ISBNThe mystery is that if our hippocampus, like that of mother rats, shows signs of new growth, why do we get momnesia? Why do we forget to pay the bills and return calls?
2011, Jena Pincott, Do Chocolate Lovers Have Sweeter Babies?: The Surprising Science of Pregnancy, Free Press, →ISBN, page 192Synonyms: baby brain, mommy brain
Synonyms & antonyms
nounForgetfulness in a pregnant woman or mother.
Origin
Rhymes & wordplay
Anagrams
Cite this entry
momnesia. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/momnesia
“momnesia.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/momnesia. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “momnesia,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/momnesia.
Source: momnesia on Wiktionary, CC BY-SA 4.0.