- tending or apt to intrude; coming without invitation or welcome: intrusive memories of a lost love.
- characterized by or involving intrusion.
- intruding; thrusting in.
- (of a rock) having been forced between preexisting rocks or rock layers while in a molten or plastic condition.
- noting or pertaining to plutonic rocks.
- Phonetics. excrescent(def 2).
Origin of intrusive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- 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
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 nonintrusive
Online Etymology Dictionary, © 2010 Douglas Harper