contrivable

From contrive +‎ -able.

contrivable (not comparable)

1. Capable of being contrived, invented, or devised.
   • 1648, John Wilkins, Mathematical Magick:

     A perpetual motion may seem easily contrivable.

• “contrivable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.