adjective in·tru·sive \in-ˈtrü-siv, -ziv\

: annoying someone by interfering with their privacy : intruding where you are not wanted or welcome

Full Definition of INTRUSIVE

a :  characterized by intrusion
b :  intruding where one is not welcome or invited
a :  projecting inward <an intrusive arm of the sea>
b (1) of a rock :  having been forced while in a plastic state into cavities or between layers
(2) :  plutonic
:  having nothing that corresponds to a sound or letter in orthography or etymon <intrusive \t\ in \ˈmints\ for mince>
intrusive noun
in·tru·sive·ly adverb
in·tru·sive·ness noun

Examples of INTRUSIVE

  1. a loud and intrusive person
  2. She tried to be helpful without being intrusive.
  3. Intrusive reporters disturbed their privacy.

First Known Use of INTRUSIVE

15th century

Other Geology Terms

anthracite, boulder, cwm, erratic, igneous, mesa, sedimentary, silt, swale


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