Synonyms|58Antonyms|0|Broader|0Narrower|0Related|12
1
heroin
1
hop
1
hypnotic
1
junk
1
knockout drops
1
laudanum
1
liquor
1
methadone
1
morphine
1
muffle
1
muffler
1
mute
1
muzzle
1
narcotic
1
opiate
1
opium
1
pacifier
1
pain killer
1
paregoric
1
pen yan
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APASmart Define. (2015). quietener thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/quietener/thesaurus/synonyms
ChicagoSmart Define. 2015. "quietener thesaurus" https://smartdefine.org/quietener/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, quietener thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/quietener/thesaurus/synonyms>.
MLASmart Define. "quietener thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/quietener/thesaurus/synonyms>