单词：ataractic 

名词

• 
  [1.n.ataractic] (同义词:[tranquilizer( n. 镇定剂, 使镇定的人或物 )]  [tranquillizer(n.[医]镇定剂, 使镇定的人或物 )]  [tranquilliser]  [antianxiety_agent]  [ataractic_drug]  [ataractic_agent]  [ataractic( n. 镇静剂, 安定药 adj. 镇静剂的 )]  )
• 
  注释列句：a drug used to reduce stress or tension without reducing mental clarity
• 上位词 -> [psychotropic_agent]  [drug( n. 药, 麻药, 麻醉药, 滞销货 vi. <俗> 吸毒 vt. 使服毒品, 毒化 )]  [agent( n. 代理(商) )]  [causal_agent]  [physical_entity]  [entity( n. 实体 )] 
• 下位词 -> [major_tranquilizer]  [minor_tranquilizer] 
  派生词 -> [ataractic( n. 镇静剂, 安定药 adj. 镇静剂的 )] 
  

形容词

• 
  [1.a.ataractic] (同义词:[ataractic( n. 镇静剂, 安定药 adj. 镇静剂的 )]  [ataraxic( n. 镇静剂, 安定药 adj. 镇静剂的 )]  [sedative( adj. 镇静的, 止痛的 n. 镇静剂, 止痛药 )]  [tranquilizing]  [tranquillizing]  [tranquilising]  [tranquillising]  )
• 
  注释列句：tending to soothe or tranquilize; "valium has a tranquilizing effect"; "took a hot drink with sedative properties before going to bed"
• 近义词 -> [depressant( adj. 有镇静作用的 n. 镇静剂 )] 
  派生词 -> [ataractic( n. 镇静剂, 安定药 adj. 镇静剂的 )]  [ataraxia( n. 心神安宁, 不动心(亦作ataraxy) )]