The Collaborative International Dictionary of English v.0.48:

Recommendable \Rec`om*mend"a*ble\ (-?*b'l), a. [Cf. F.
   recommandable.]
   Suitable to be recommended; worthy of praise; commendable.
   --Glanvill. -- Rec`om*mend"a*ble*ness, n. --
   Rec`om*mend"a*bly, adv.
   [1913 Webster]