Dictionary.com
Thesaurus.com
Synonyms

nag

1 American  
[nag] / næg /

verb (used with object)

nagged, nagging

  1. to annoy by persistent faultfinding, complaints, or demands.

    Synonyms:
    vex, irritate, hector, harass, pester

  2. to keep in a state of troubled awareness or anxiety, as a recurrent pain or problem.

    She had certain misgivings that nagged her.

verb (used without object)

nagged, nagging

  1. to find fault or complain in an irritating, wearisome, or relentless manner (often followed byat ).

    If they start nagging at each other, I'm going home.

  2. to cause pain, discomfort, distress, depression, etc. (often followed byat ).

    This headache has been nagging at me all day.

noun

  1. Also a person who nags, especially habitually.

  2. an act or instance of nagging.

    His constant nagging finally got the best of me and I lost my temper.
nag 2 American  
[nag] / næg /

noun

  1. an old, inferior, or worthless horse.

  2. Slang. any horse, especially a racehorse.

  3. a small riding horse or pony.

nag 1 British  
/ næɡ /

verb

  1. to scold or annoy constantly

  2. to be a constant source of discomfort or worry (to)

    toothache nagged him all day
"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a person, esp a woman, who nags

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
nag 2 British  
/ næɡ /

noun

  1. derogatory a horse

  2. a small riding horse

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • nagger noun
  • naggingly adverb
  • unnagged adjective

Etymology

Origin of nag1

First recorded in 1820–30; from Old Norse nagga “to rub, grumble, quarrel”; akin to Middle Low German naggen “to irritate”; gnaw

Origin of nag2

First recorded in 1400–50; late Middle English nag(ge); connected with Dutch neg(ge) “small horse,” of obscure origin; said to be akin to neigh

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

I don’t want to nag, but neither do I want to be a doormat.

From MarketWatch • Oct. 9, 2025

A few doubts nag him, such as: what are he and his team accomplishing by sorting random numbers?

From Salon • Mar. 22, 2025

"Richard was incredibly keen on transplants and he used to nag me, 'what do you want to do?' and I was a bit wishy washy about it and wouldn't really answer."

From BBC • Sep. 18, 2024

For all that he did this season, the Mariners’ failure to reach to the postseason and his own inconsistencies will nag at him all offseason and motivate him through workouts.

From Seattle Times • Nov. 20, 2023

A painted cart piled high with trunks rolled into the courtyard, pulled by a weary nag in bright trappings.

From "Ophelia" by Lisa Klein

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.