cos·tive /ˈkɑstɪv, ˈkɔs-/
  (a.)秘結性的,便祕的,小氣的
  cos·tive /ˈkɑstɪv, ˈkɔs-/ 形容詞
  便祕的,腸蠕動抑制劑
  Cos·tive a.
  1. Retaining fecal matter in the bowels; having too slow a motion of the bowels; constipated.
  2. Reserved; formal; close; cold. [Obs.] “A costive brain.” --Prior. “Costive of laughter.” --B. Jonson.
     You must be frank, but without indiscretion; and close, but without being costive.   --Lord Chesterfield.
  3. Dry and hard; impermeable; unyielding. [Obs.]
     Clay in dry seasons is costive, hardening with the sun and wind.   --Mortimer.
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  costive
       adj : retarding evacuation of feces [ant: laxative]