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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.

Ham-handed police officers pester Janey for details: Why did she touch Samantha’s dress?

From The Wall Street Journal • Mar. 13, 2026

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 as I tried to pester, cajole, and play to what I thought were his sympathies to convince him to speak with me, he quickly stopped being mad.

From Slate • May 31, 2024

"They are predators and their main prey are insects, many of which eat our crops and pester our livestock," its website suggests.

From BBC • Aug. 5, 2023

“Watch a video. Play with your toys. Go and pester Miss Spink or Miss Forcible, or the crazy old man upstairs.”

From "Coraline" by Neil Gaiman