Synonyms|72Antonyms|0|Broader|4Narrower|0Related|12
1
narcotic
1
opiate
1
opium
1
pacifier
1
pain killer
1
paregoric
1
pen yan
1
phenobarbital sodium
1
quietener
1
rainbow
1
scag
1
secobarbital sodium
1
sedative
1
shit
1
sleep-inducer
1
sleeper
1
sleeping draught
1
sleeping pill
1
smack
1
somnifacient
For more, visit Phenobarbital on Power Thesaurus
11 years ago|501 views|share |citing 
APASmart Define. (2015). phenobarbital thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/phenobarbital/thesaurus/synonyms
ChicagoSmart Define. 2015. "phenobarbital thesaurus" https://smartdefine.org/phenobarbital/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, phenobarbital thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/phenobarbital/thesaurus/synonyms>.
MLASmart Define. "phenobarbital thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/phenobarbital/thesaurus/synonyms>