The meaning of INTRUSION is the act of intruding or the state of being intruded; especially : the act of wrongfully entering upon, seizing, or taking possession of the property of another.

Getting involved for one's own benefit or against others' will (Definition of intrusion from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

An intrusion is something that disturbs your mood or your life in a way you do not like. I felt it was a grotesque intrusion into our lives.

1. interruption, interference, infringement, trespass, encroachment I hope you don't mind this intrusion. 2. invasion, breach, infringement, infiltration, encroachment, infraction, usurpation I felt it was a …

Intrusion is the act of entering or interrupting a place, situation, or condition without invitation, permission or welcome; often causing disruption or inconvenience.

intrusion, n. meanings, etymology, pronunciation and more in the Oxford English Dictionary

1. any entry into an area not previously occupied. 2. entrance by force or without permission or welcome. 3. the forcing of molten rock into fissures or between strata of an earlier rock formation. 4. …

INTRUSION definition: an act or instance of intruding. See examples of intrusion used in a sentence.

Stop zero-day threats before they start. Intrusion Shield uses reputation-based threat intelligence to protect your network in real time.

an act or instance of intruding: [uncountable] She hated the intrusion into her private life. [countable] The press made intrusions into his private life. in•tru•sive /ɪnˈtrusɪv/ adj.: an intrusive question.