Synonyms|252Antonyms|11|Broader|7Narrower|21Related|91
3
attacker
3
botherer
3
burglar
3
foreign body(expression, idiom, alien, visitor, foreigner)
3
impostor
3
infiltrator
3
kibitzer
3
novus homo(expression, idiom, extraneousness)
3
snooper(noun, spy, gossip, nuisance, sneak)
3
uninvited guest
3
visitor(noun, alien, settler, foreigner, stranger)
2
immigrant(alien, visitor, settler, foreigner, stranger)
2
disturber
2
foreigner(noun, alien, visitor, settler, stranger)
2
arriviste
2
butt-in
2
criminal
2
gate-crasher
2
incomer(alien, visitor, settler, foreigner, stranger)
2
intermeddler
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APASmart Define. (2016). intruder thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/intruder/thesaurus/synonyms
ChicagoSmart Define. 2016. "intruder thesaurus" https://smartdefine.org/intruder/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, intruder thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/intruder/thesaurus/synonyms>.
MLASmart Define. "intruder thesaurus" 26 February 2016. Web. 27 September 2026. <https://smartdefine.org/intruder/thesaurus/synonyms>