uneconomical, unviable, uncompetitive, inviable, unfeasible, uncommercial, unprofitable, prohibitive, unaffordable, unattractive, unworkable, impractical, unsustainable, inefficient, infeasible, unsaleable, untenable, unpractical, feasible, obsolete, unusable, unremunerative, unsalable, unsuitable, unsupportable, unwise, nonviable, profitable, illogical, obsolescent, onerous, viable, overcapitalized, profitless, valueless, inexpedient, recoverable, unrecoverable, unachievable, minable, unuseable, redundant, insolvent, inaccessible, inequitable, useless, infructuous, worthless, unsafe, counterproductive, inoperative, unmarketable, farmable, imprudent, expensive, uninsurable, outdated, opencast, opencast mining, unmanageable, indefensible, unhedged, exhaustible, unproductive, unenforceable, unreasonable, inadequate, undoable, unfair, underutilized, undiversified, ineffective, unacceptable, outmoded, unjustifiable, depletable, costly, unmined, risky, unsound, inoperable, realizable, irrelevant, unpalatable, foolish, unsalvageable, problematical, cheaper, unobtainable, wasteful, oversupplied, illiquid, unneighbourly, overgrazed, insufficient, marginal, unreliable, undeveloped, burdensome, unseaworthy, arbitrary, unplayable, economical, laborintensive, capitalintensive, remunerative, decentralised, exploitive, unregulated, autarkic, commerical, costeffective, labourintensive, suboptimal