4
uncle(noun, family, kinship, lineage)
4
unidentified(adjective, characteristic, person, trait, relation)
2
lad(noun, family, kinship, lineage)
2
alien(noun, person, individual, guest, stranger)
2
anonymous(adjective, characteristic, person, trait, relation)
2
chap(noun, man, fellow, guy, male)
2
extraneous(adjective, characteristic, person, trait, relation)
2
grandfather(noun, family, kinship, lineage)
2
immigrant(noun, person, individual, guest, stranger)
2
nameless(adjective, characteristic, person, trait, relation)
2
obscure(adjective, characteristic, person, trait, relation)
2
outsider(noun, person, individual, guest, stranger)
2
slut
2
unnamed(adjective, characteristic, person, trait, relation)
1
compeer
1
visitor(noun, person, individual, guest, stranger)
0
adolescent
0
chummy
0
company
0
crony
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APASmart Define. (2016). sister thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/sister/thesaurus/antonyms
ChicagoSmart Define. 2016. "sister thesaurus" https://smartdefine.org/sister/thesaurus/antonyms (accessed September 26, 2026).
HarvardSmart Define 2016, sister thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/sister/thesaurus/antonyms>.
MLASmart Define. "sister thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/sister/thesaurus/antonyms>