supportable

adjective2

1. •
   Capable of being supported, upheld, maintained, or defended.

   • A ceremony at which two persons undertake to become one, one undertakes to become nothing, and nothing undertakes to become supportable. — 1911
2. •
   Capable of being borne, endured, or tolerated; endurable.

   • [...]supportable To make the dear loss, have I means much weaker Than you may call to comfort you, for I Have lost my daughter. — 1610