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pester

American  
[pes-ter] / ˈpɛs tər /

verb (used with object)

  1. to bother persistently with petty annoyances; trouble.

    Don't pester me with your trivial problems.

    Synonyms:
    hector, harry, badger, plague, provoke, irritate, disturb, tease, vex, annoy
    Antonyms:
    entertain, delight
  2. Obsolete. to overcrowd.


pester British  
/ ˈpɛstə /

verb

  1. (tr) to annoy or nag continually

"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

  • pesterer noun
  • pesteringly adverb
  • pestersome adjective
  • unpestered adjective

Etymology

Origin of pester

1530–40; perhaps aphetic variant of empester, impester to tangle, encumber (though pester is found earlier than these 2 words) < Middle French empestrer to hobble, entangle < Vulgar Latin *impāstōriāre to hobble, equivalent to im- im- 1 + pāstōri ( a ) a hobble, noun use of Latin pāstōrius of a herdsman or shepherd + -āre infinitive suffix ( pastor ); aphetic form apparently reinforced by pest ( -er 6 )

Explanation

To pester someone is to annoyingly nag them about something. Pestering is repetitive and bothersome. When a child asks a parent something over and over again — like "Can I have candy? Please? Can I have candy now?" — that's an example of pestering. Parents also pester kids when they say "Clean your room" or "Take out the garbage" over and over. Pestering is like requesting, but doing it many times, usually to the point of annoyance. No one likes to be pestered.

Keep Reading on Vocabulary.com

Vocabulary lists containing pester

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.

And I never needed to pester him for stories.

From The Wall Street Journal • Jan. 30, 2026

He was arrested and later released on bail on condition that he did not harass, pester or intimidate Harshita.

From BBC • Nov. 9, 2025

It was to ensure he was comfortable with the task required to impress NFL teams that poke, prod and pester players during the evaluation process.

From Los Angeles Times • Feb. 26, 2025

But every so often there’s one person who forgets to Venmo or Zelle or who I have to pester about sending their share a few times.

From Slate • Feb. 28, 2024

We continued to pester them, and finally Professor Matthews, who was a lawyer, said that it had been a privileged conversation.

From "Long Walk to Freedom" by Nelson Mandela