A mine or stream that was abandoned because it was unprofitable to work. Due to the recent escalation in the price of gold, many of these abandoned areas are being reopened.

To present participles which come from intransitive verbs, or are themselves employed as adjectives, to mark the absence of the activity, disposition, or condition implied by the participle;

not producing or capable of producing; "elimination of high-cost or unproductive industries"

not producing desired results; "the talks between labor and management were unproductive"

Refers to where a dog points, a handler flushes and no game is produced.