Answer:
Unreachable
Explanation:
Unreachable segment or market is the one, where the firm or the organization is unable to sold their goods and services and could earn profit out of it.
So, even though the firm has developed the product and the service, which also addresses or has the needs of the particular, segment of substantial market, then their efforts might fail if the segment or the market is unreachable for them, because they could not able to sold their products.
