Synonyms|46Antonyms|4|Broader|0Narrower|0Related|76

18 entries under adjective topic. ×

13
narcotic(dulling, confidentiality, somniferous, somnifacient)
9
soporific
7
somnific
6
somniferous
5
hypnogogic
4
hypnagogic
2
drowsy
2
sleepy
2
somnolent
1
deadening(dulling, painkilling)
1
slumberous
1
somnorific(dulling, confidentiality, somniferous, somnifacient)
1
stupefacient(dulling, confidentiality, somniferous, somnifacient)
1
stupefactive(dulling, confidentiality, somniferous, somnifacient)
0
anodyne
0
muffling
0
sleep-inducing
0
slumbrous
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APASmart Define. (2013). soporiferous thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/soporiferous/thesaurus/synonyms
ChicagoSmart Define. 2013. "soporiferous thesaurus" https://smartdefine.org/soporiferous/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2013, soporiferous thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/soporiferous/thesaurus/synonyms>.
MLASmart Define. "soporiferous thesaurus" 28 June 2013. Web. 28 September 2026. <https://smartdefine.org/soporiferous/thesaurus/synonyms>