tranquilizing

from WordNet (r) 3.0 (2006)

tranquilizing
    adj 1: tending to soothe or tranquilize; "valium has a
           tranquilizing effect"; "took a hot drink with sedative
           properties before going to bed" [syn: {ataractic},
           {ataraxic}, {sedative}, {tranquilizing},
           {tranquillizing}, {tranquilising}, {tranquillising}]

from The Collaborative International Dictionary of English v.0.48

Tranquilizing \Tran"quil*i`zing\, Tranquillizing
\Tran"quil*li`zing\, a.
   Making tranquil; calming. " The tranquilizing power of time."
   --Wordsworth. -- {Tran"quil*i`zing*ly} or
   {Tran"quil*li`zing*ly}, adv.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Tranquilize \Tran"quil*ize\, Tranquillize \Tran"quil*lize\, v.
   t. [imp. & p. p. {Tranquilized}or {Tranquilliized}; p. pr. &
   vb. n. {Tranquilizing}or {Tranquillizing}.] [Cf. F.
   tranquilliser.]
   To render tranquil; to allay when agitated; to compose; to
   make calm and peaceful; as, to tranquilize a state disturbed
   by factions or civil commotions; to tranquilize the mind.
   [1913 Webster]

   Syn: To quiet; compose; still; soothe; appease; calm; pacify.
        [1913 Webster] Tranquilizer

from Moby Thesaurus II by Grady Ward, 1.0

29 Moby Thesaurus words for "tranquilizing":
      analgesic, anodyne, appeasing, calmant, calmative, calming,
      cradling, depressant, dreamy, drowsy, gentling, hushing, hypnotic,
      lulling, mollifying, narcotic, pacifying, paregoric, quietening,
      restful, rocking, sedative, sleep-inducing, somnifacient,
      somniferous, soothful, soothing, soporific, stilling