occasionable

adjective2

1. •
   Capable of being occasioned or caused

   • this practice will fence us against immoderate displeasure occasionable by men's hard opinions — 1678
2. •
   (no longer used) occasional

   • Having listened attentively to the statement of Wandle Schoonhoven, giving an occasionable grunt, as he shovelled a mighty spoonful of Indian pudding into his mouth […] — 1809