Synonyms|34Antonyms|1|Broader|2Narrower|0Related|0
6
close(adjective, familiar, loving, intimate, devoted)
4
inseparable(adjective, close, familiar, loving, intimate)
4
intimate(adjective, close, familiar, loving, devoted)
3
familiar(adjective, loving, intimate)
3
palsy-walsy(adjective, familiar, loving, intimate)
2
devoted(adjective, close, familiar, loving, intimate)
2
related(adjective, familiar, loving, intimate, devoted)
2
thick(adjective, familiar, loving, intimate)
1
attached(adjective, close, familiar, loving, intimate)
1
buddy-buddy(adjective, familiar, loving, intimate, devoted)
1
chummy(adjective, familiar, loving, intimate, devoted)
1
confidential(adjective, familiar, loving, intimate)
1
cozy with(expression, adjective, familiar, loving, intimate)
1
dear(adjective, familiar, loving, intimate, devoted)
1
friendly(adjective, familiar, loving, intimate)
1
hand-in-hand
1
hand in glove
1
kissing cousins(expression, adjective, familiar, loving, intimate)
1
loving(adjective, familiar, intimate, devoted, dear)
1
making it with(expression, adjective, idiom, familiar, loving)
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APASmart Define. (2015). thick as thieves thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/thick_as_thieves/thesaurus/synonyms
ChicagoSmart Define. 2015. "thick as thieves thesaurus" https://smartdefine.org/thick_as_thieves/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, thick as thieves thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/thick_as_thieves/thesaurus/synonyms>.
MLASmart Define. "thick as thieves thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/thick_as_thieves/thesaurus/synonyms>