1
connection
1
country cousin
1
daughter
1
father-in-law(noun, connection, relation, kin, relative)
1
folk
1
folks
1
grandparents(noun, connection, relation, kin, relative)
1
great-grandparents(noun, connection, relation, kin, relative)
1
half-sibling
1
in-laws(noun, connection, relation, kin, relative)
1
kinsman(noun, connection, relative, father, mother)
1
kinsperson(noun, connection, relation, kin, relative)
1
kinswoman(noun, connection, relative, father, mother)
1
mother-in-law(noun, connection, relation, kin, relative)
1
relation
1
relative(noun, connection, relation, kin, member)
1
sib(noun, connection, relation, kin, relative)
1
sibling
1
sis
1
sissy
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APASmart Define. (2015). stepsister thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/stepsister/thesaurus/synonyms
ChicagoSmart Define. 2015. "stepsister thesaurus" https://smartdefine.org/stepsister/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, stepsister thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/stepsister/thesaurus/synonyms>.
MLASmart Define. "stepsister thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/stepsister/thesaurus/synonyms>