soporiferous
[sop-uh-rif-er-uhs, soh-puh-]
/ ˌsɒp əˈrɪf ər əs, ˌsoʊ pə- /
ADJECTIVE
narcotic
Synonyms
STRONGEST
STRONG
WEAK
Antonyms
STRONG
ADJECTIVE
sleep-inducing
Synonyms
Antonyms
WEAK
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.