sea·son·able /ˈsiznəbəl, ˈsizṇəbəl/
  (a.)適合于季節的,合于時宜的,應時的
  Sea·son·a·ble a. Occurring in good time, in due season, or in proper time for the purpose; suitable to the season; opportune; timely; as, a seasonable supply of rain.
     Mercy is seasonable in the time of affliction.   --Ecclus. xxxv. 20.
  -- Sea*son*a*ble*ness, n. -- Sea*son*a*bly, adv.
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  seasonable
       adj 1: in keeping with the season; "a hard but seasonable frost";
              "seasonable clothes" [ant: unseasonable]
       2: done or happening at the appropriate or proper time; "a
          timely warning"; "with timely treatment the patient has a
          good chance of recovery"; "a seasonable time for
          discussion"; "the book's publication was well timed" [syn:
           timely, well-timed(a), well timed(p)]