• synonyms


  1. tending or apt to intrude; coming without invitation or welcome: intrusive memories of a lost love.
  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(def 2).
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Origin of intrusive

late Middle English word dating back to 1375–1425; see origin at intrusion, -ive
Related formsin·tru·sive·ly, adverbin·tru·sive·ness, nounnon·in·tru·sive, adjectivenon·in·tru·sive·ly, adverbun·in·tru·sive, adjectiveun·in·tru·sive·ly, adverb

Synonyms for intrusive

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for intrusively

Historical Examples of intrusively

  • Do you think that because you are in your own house you can be as intrusively insulting as you choose?

    T. Tembarom

    Frances Hodgson Burnett

  • Ozias Midwinter, after intrusively rising to the surface, had conveniently dropped out of sight again.


    Wilkie Collins

  • The old ragged abodes of wretchedness seemed to be too clearly defined—to stand out too intrusively against the bright blue sky.


    Frederic S. Cozzens

  • Note the Hogarthian touch of the p. 118initials carved on the window, sufficiently distinct and yet not intrusively so.

  • A question often put when a jaw-breaking word has been intrusively uttered by savants.

    The Sailor's Word-Book

    William Henry Smyth

British Dictionary definitions for intrusively


  1. characterized by intrusion or tending to intrude
  2. (of igneous rocks) formed by intrusionCompare extrusive (def. 2)
  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
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Derived Formsintrusively, adverbintrusiveness, noun
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

Word Origin and History for intrusively



c.1400, from Latin intrus-, past participle stem of intrudere (see intrusion) + -ive. Related: Intrusively; intrusiveness.

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Online Etymology Dictionary, © 2010 Douglas Harper