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Synonyms

intrusive

American  
[in-troo-siv] / ɪnˈtru sɪv /

adjective

  1. tending or apt to intrude; coming without invitation or welcome.

    intrusive memories of a lost love.

    Synonyms:
    disturbing, irritating, troublesome, worrisome, irksome, bothersome, annoying
  2. characterized by or involving intrusion.

  3. intruding; thrusting in.

  4. Geology.

    1. (of a rock) having been forced between preexisting rocks or rock layers while in a molten or plastic condition.

    2. noting or pertaining to plutonic rocks.

  5. Phonetics. excrescent.


intrusive British  
/ ɪnˈtruːsɪv /

adjective

  1. characterized by intrusion or tending to intrude

  2. (of igneous rocks) formed by intrusion Compare extrusive

  3. phonetics relating to or denoting a speech sound that is introduced into a word or piece of connected speech for a phonetic rather than a historical or grammatical reason, such as the (r) often pronounced between idea and of in the idea of it

"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

Etymology

Origin of intrusive

late Middle English word dating back to 1375–1425; see origin at intrusion, -ive

Explanation

Something intrusive is getting in your face or invading your space. Nosey questions, a poke in the ribs, and a hovering mother are all intrusive. Things that are intrusive are a real pain in the neck: they intrude on you. If someone asks you a million questions, especially personal questions, that's intrusive behavior. When photographers hound celebrities, they're being intrusive. If a rock is sticking out and getting in people's way, then it's intrusive. All meanings of intrusive involve something being where it doesn't belong.

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Vocabulary lists containing intrusive

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.

But Hong Kong-based startup PointFit offers a less intrusive alternative using an adhesive patch, whose tiny sensor reads levels of biomarkers like glucose and cortisol from the sweat on users' skin.

From Barron's • Jun. 18, 2026

That means all the enriched uranium and the underground sites, with intrusive inspections and an enrichment ban.

From The Wall Street Journal • May 28, 2026

It revolves around married couple Beth and Eric - played by Arabella Weir and Alex Norton - and their intrusive family members and neighbours.

From BBC • May 13, 2026

Obsessive, intrusive thoughts can paralyse sufferers with anxiety, fear, disgust or shame - and many will not realise the images they are experiencing in their head are due to OCD.

From BBC • Apr. 29, 2026

The letter was addressed to her grandmother; it seemed intrusive to read it.

From "The Parker Inheritance" by Varian Johnson

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