brain fog
brain fog noun: problems in concentrating, thinking clearly, or remembering things; a sense of not being completely awake or mentally acute.
Noun
brain fog (uncountable)
- Problems in concentrating, thinking clearly, or remembering things; a sense of not being completely awake or mentally acute.
- Then, as the brain fog lifted a little and cleared away, his chin quivered and he went on : “ Oh, Daisy, Daisy ; it comes back to me now, the years that are gone, and you as you were then. ”1886, Mary Jane Holmes, Bessie's Fortune, G. W. Carleton & Co., page 261
- That woman and her question must have emanated from the brain fog of some opposer to scientific temperance education who was trying to find out for himself whether three glasses of whisky or a bottle of Rhine wine is isodynamic with certain amounts of sugar, fat, and starch.1899, Mary H. Hunt, contribution to the discussion session on a lecture by W.O. Atwater, “Alcohol physiology and superintendence”. Proceedings of the Department of Superintendence, National...
- Synonyms:
- cog fog, obnubilation
brain fog meaning in Tamil
brain fog in Tamil
- மூளை மந்தம்
Examples of brain fog in a sentence
- While the warm, lingering days of summer are doubtless a wonderful thing, the brain fog that can accompany surging temperatures is actually real — and it doesn’t feel so wonderful.2018, Carolyn de Lorenzo, “The Scientific Reason You’re So Brain Foggy Over The Summer”, in Bustle:
- It’s becoming known as Covid brain fog: troubling cognitive symptoms that can include memory loss, confusion, difficulty focusing, dizziness and grasping for everyday words.2020 October 11, Pam Belluck, “‘I Feel Like I Have Dementia’: Brain Fog Plagues Covid Survivors”, in New York Times:
Synonyms of brain fog
Questions about brain fog
- What does brain fog mean?
- Brain fog means problems in concentrating, thinking clearly, or remembering things; a sense of not being completely awake or mentally acute.
- What is brain fog in Tamil?
- Brain fog in Tamil is மூளை மந்தம். See Brain fog meaning in Tamil.
- How do you use brain fog in a sentence?
- While the warm, lingering days of summer are doubtless a wonderful thing, the brain fog that can accompany surging temperatures is actually real — and it doesn’t feel so wonderful.
- What part of speech is brain fog?
- Brain fog is a noun.
Words near brain fog in the dictionary
Source and license
Adapted from Wiktionary: brain fog (page history and authors); brain fog (Tamil Wiktionary) (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.
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Cite this entry: “brain fog.” Word.ws, https://word.ws/brain_fog. Based on Wiktionary, CC BY-SA 4.0.