Find Synonyms

intruder Synonyms

Another word for intruder

Choosing another word for intruder depends on context, so the 11 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• noun (Context 1)

A person who enters a building, property, or restricted area without permission or invitation, often with criminal intent.

Usage Example

"The security system alerted the homeowners that an trespasser had climbed over the back fence."

Strongest
trespasser
prowler
Strong
burglar
invader
infiltrator
housebreaker

• noun (Context 2)

A person or thing that comes into a situation, group, or environment where they are not wanted or do not belong.

Usage Example

"Sitting quietly in the corner of the private family gathering, he felt like an awkward interloper."

Strongest
interloper
Strong
outsider
gatecrasher
encroacher
meddler

Opposites of intruder

The opposite of intruder shifts depending on context. Common opposites include:

invitee
insider
guest
member
resident
native
host
See all opposites of intruder

• Nearby Words

introvert
introverted
intrude
intruder
intrusion
intrusive
intrusively

Cite this Entry

Wordmom. (2026). Synonyms for Intruder. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/intruder
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