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Definition of soporific:

  1. A medicine or other substance that has the quality of inducing sleep.
  2. Tending to cause sleep.


punishing, uninspired, tedious, depressant, unexciting, somnolent, humdrum, somnifacient, wearying, nodding, weary, hypnagogic, sedative, soporiferous, slumberous, tiring, dreary, boring, awareness, somnolent, tired, exhausting, dozy, somnific, trying, uninteresting, hypnogogic, hypnotic, narcotic, trivial, wearing, somniferous, slumbery, wearisome, narcotizing, mind-numbing, opiate, narcotising.

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