tending or apt to intrude; coming without invitation or welcome: intrusive memories of a lost love.
characterized by or involving intrusion.
intruding; thrusting in.
  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.
Phonetics. excrescent(def 2).

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 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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



characterized by intrusion or tending to intrude
(of igneous rocks) formed by intrusionCompare extrusive (def. 2)
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
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.

Online Etymology Dictionary, © 2010 Douglas Harper