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Synonyms for Narcotic (same or very similar meaning)

WordNet sense 1 (inducing stupor or narcosis):
narcotising, narcotizing

WordNet sense 2 (capable of depressing physiological or psychological activity or response by a chemical agent):
depressant

WordNet sense 3 (inducing mental lethargy):
soporific, soporiferous

WordNet sense 4 (arousing no interest or attention or curiosity or excitement):
uninteresting


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