Synonyms|472Antonyms|66|Broader|58Narrower|73Related|265

5 entries under agent topic. ×

3
energizer(noun, medicine, substance)
3
excitant(noun, medicine, substance)
2
refresher(noun, medicine, substance)
1
reviver(noun, medicine, substance)
-3
upper(noun, medicine, substance)
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APASmart Define. (2015). soporific thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/soporific/thesaurus/antonyms
ChicagoSmart Define. 2015. "soporific thesaurus" https://smartdefine.org/soporific/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2015, soporific thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/soporific/thesaurus/antonyms>.
MLASmart Define. "soporific thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/soporific/thesaurus/antonyms>