50 entries under noun topic. ×

9
ataractic
8
depressant(adjective, sedative, downer, calmative)
8
tranquillizer
7
tranquilliser
6
opiate
5
antianxiety agent(expression, idiom)
5
ataractic drug(expression, idiom)
5
narcotic
5
pacifier
5
soother
3
ataractic agent(expression, idiom)
3
downer
3
pain killer(expression, idiom, medicine)
2
anodyne(medicine, drug, comfort, relief)
2
appeaser
2
mitigator
2
painkiller
2
palliative(comfort, relief)
2
sleeper
1
benzodiazepine
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APASmart Define. (2016). tranquilizer thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/tranquilizer/thesaurus/synonyms
ChicagoSmart Define. 2016. "tranquilizer thesaurus" https://smartdefine.org/tranquilizer/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, tranquilizer thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/tranquilizer/thesaurus/synonyms>.
MLASmart Define. "tranquilizer thesaurus" 18 February 2016. Web. 25 September 2026. <https://smartdefine.org/tranquilizer/thesaurus/synonyms>