soporiferous

English Thesaurus

1. inducing mental lethargy (adj.all)

similar	:	uninteresting,
definition	:	arousing no interest or attention or curiosity or excitement (adj.all)

2. sleep inducing (adj.all)

similar	:	depressant,
definition	:	capable of depressing physiological or psychological activity or response by a chemical agent (adj.all)

3. inducing mental lethargy (adj.all)

derivation	:	hypnotic, soporific, hypnotic, soporific,
definition	:	a drug that induces sleep (noun.artifact)

derivation	:	hypnotic, soporific, hypnotic, soporific,
definition	:	a drug that induces sleep (noun.artifact)