• WordNet 3.6
    • adj intrusive tending to intrude (especially upon privacy) "she felt her presence there was intrusive"
    • adj intrusive thrusting inward "an intrusive arm of the sea"
    • adj intrusive of rock material; forced while molten into cracks between layers of other rock
    • ***
Webster's Revised Unabridged Dictionary
    • a Intrusive Apt to intrude; characterized by intrusion; entering without right or welcome.
    • ***
Century Dictionary and Cyclopedia
    • intrusive Apt to intrude; coming unbidden or without welcome; appearing undesirably: as, intrusive thoughts or guests.
    • intrusive Done or effected by intrusion; carried out by irregular or unauthorized entrance: as, intrusive interference.
    • intrusive Thrust in out of regular place or order; introduced from an extraneous source; due to intrusion or irregular entrance.
    • intrusive Specifically, in geology applied to those igneous masses which have forced their way between older rocks and have never reached the surface: contrasted with extrusive. See intrusive rocks, under intrusive.
    • n intrusive In geology, a mass of igneous rock which has forced its way between older walls or strata, but has never reached the surface of the earth. Intrusives occur as batholiths, laccoliths, intruded sheets, and dikes.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Intrusive tending or apt to intrude: entering without welcome or right
    • ***


  • Willa Cather
    “The condition every art requires is, not so much freedom from restriction, as freedom from adulteration and from the intrusion of foreign matter.”
  • Robert Chapman
    Robert Chapman
    “A quotation, like a pun, should come unsought, and then be welcomed only for some propriety of felicity justifying the intrusion.”
  • Fyodor Dostoevsky
    “Sarcasm: the last refuge of modest and chaste-souled people when the privacy of their soul is coarsely and intrusively invaded.”


Chambers's Twentieth Century Dictionary
L. in, in, trudĕre, trusum, to thrust.


In literature:

How could she have so far forgotten her natural reserve, her instinctive dislike of intrusion?
"The Window-Gazer" by Isabel Ecclestone Mackay
I have my work to get on with, and it shall not suffer from the intrusion of idlers.
"The Emancipated" by George Gissing
She "knew her place," and resented the intrusion.
"The British Barbarians" by Grant Allen
When seriousness is real, it is never intrusive and can never be overdone.
"As a Matter of Course" by Annie Payson Call
That gentleman faintly defended the stranger for the intrusion of the bumpkin tune.
"Sandra Belloni, Complete" by George Meredith
Instead, therefore, of objurgating the timid intrusions of Philosophy, invoke her presence, I pray you.
"Diana of the Crossways, Complete" by George Meredith
If persistently intrusive, they are handed to the constable.
"Lord Ormont and his Aminta, Complete" by George Meredith
The intrusion offered a welcome vent to Waythorn's nerves.
"The Descent of Man and Other Stories" by Edith Wharton
It might be all as she said, but there were intrusive misgivings that troubled him.
"After the Storm" by T. S. Arthur
Dexter will hardly call twice in the same day; so you will be free from his intrusion.
"The Hand But Not the Heart" by T. S. Arthur

In poetry:

My own intrusion to excuse,
The wond'rous dog I prais'd,
Whose milder mien my eye reviews,
Delighted and amaz'd!
"The Hermit's Dog" by William Hayley
Princess, all hail!
Forgive the bold intrusion of thy servant,
Who stands a charm'd spectator of thy goodness.
"Moses In The Bulrushes. A Sacred Drama" by Hannah More
From the lusts whose deep pollution
Adam's elder taint disclose,
From the Tempter's dark intrusion,
And from everlasting woes;
"Hymn 11. Third Sunday After Epiphany" by Reginald Heber
But the quiver of intrusion
Through those curtains folds will run.
Measuring silence with your footsteps,
Like the future, in you'll come.
"There'll be no one in the house..." by Boris Pasternak
Farewell! Oh farewell!
Like a funeral knell
Sounds this word to the loved one’s ear!
Ah, it strikes to the heart,
And intrusive tears start,
For it robs us of all that is dear!
"Farewell" by Joseph Warren Watson
He who, 'midst the world's delusions,
Keeps his heart serene and free,
Sheltered safe from the intrusions
Of unhallowed vanity;—
He, heaven's crown of bliss shall wear,
He, earth's brightest portion share.
""Ye cannot serve God and Mammon"" by John Bowring

In news:

Illinois' seat belt law a necessary intrusion .
Letter on Expanding the Power of Big Labor: The NLRB's Growing Intrusion into Higher Education.
Intrusion embarrasses 'Fort Knox of uranium'.
Draw line in sand with GA on saltwater intrusion .
Reader wonders when government intrusion will stop.
Zoey Ripple, shot in Boulder home intrusion , working on plea deal.
Michael Bloomberg's big beverage ban is another intrusion by the nanny state.
Researchers aim to make intrusion -resistant networks.
Cybersecurity experts have long believed that networks can adapt to be more intrusion -resistant.
Gov't contraception policy a "radical intrusion ".
Where does the government intrusion end.
Bjork's Intrusion begins on Tuesday.
3 Tips for Intrusion Security Planning.
Security / 3 Tips for Intrusion Security Planning.
That sand mining project that Bluffton developer John Reed is planning near Hardeeville shouldn't make our saltwater intrusion problem any worse.

In science:

The detection time is important for intrusion detection applications, measuring how quickly a sensor network can detect a randomly located intruder.
Dynamic Coverage of Mobile Sensor Networks
The time scales of such time durations are also very important for network planning; they present the time granularity of the intrusion detection capability that a mobile sensor network can provide.
Dynamic Coverage of Mobile Sensor Networks
Specifically, we studie d the coverage measures related to the area coverage and intrusion detection capability of a mobile sensor network.
Dynamic Coverage of Mobile Sensor Networks
Zhang, “The intrusion detectio n in mobile sensor network,” in Proc. of the ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc), 2010. Y.
Dynamic Coverage of Mobile Sensor Networks
Revirt: enabling intrusion analysis through virtual-machine logging and replay.
Efficient Deterministic Replay Using Complete Race Detection