stupefactive


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stu·pe·fac·tive

 (sto͞o′pə-făk′tĭv, styo͞o′-)
adj.
Stupefacient.

stu′pe·fac′tive n.

stupefactive

(ˈstjuːpɪˌfæktɪv)
adj
another word for stupefying