Early 18th century; earliest use found in Samuel Grascome (1641–1708), nonjuring Church of England clergyman and religious controversialist. From un- + produceable.
Definition of unproduceable in US English:
unproduceable
adjective
= unproducible.
Origin
Early 18th century; earliest use found in Samuel Grascome (1641–1708), nonjuring Church of England clergyman and religious controversialist. From un- + produceable.