Producing little or no profit or gain.

Roget 647: inexpedient, undesirable; unadvisable, inadvisable; objectionable; inapt, ineligible, inadmissible, inconvenient; incommodious, discommodious^†; disadvantageous; inappropriate, unfit etc. (inconsonant) 24.    ill-contrived, ill-advised; unsatisfactory; unprofitable &c.; unsubservient etc. (useless) 645; inopportune etc. (unseasonable) 135; out of place, in the wrong place; improper, unseemly.    clumsy, awkward; cumbrous, cumbersome; lumbering, unwieldy, hulky^†; unmanageable etc. (impracticable) 704; impedient etc. (in the way) 706^†.    unnecessary etc. (redundant) 641.    ... show more

Roget 649: hurtful, harmful, scathful^†, baneful, baleful; injurious, deleterious, detrimental, noxious, pernicious, mischievous, full of mischief, mischief-making, malefic, malignant, nocuous, noisome; prejudicial; disserviceable^†, disadvantageous; wide-wasting.    unlucky, sinister; obnoxious; untoward, disastrous.    oppressive, burdensome, onerous; malign etc. (malevolent) 907.    corrupting etc. (corrupt) etc. 659; virulent, venomous, envenomed, corrosive; poisonous etc. (morbific) 657^†; deadly etc. (killing) 361; destructive etc. (destroying) 162; inauspicious etc. 859.    bad, ill, arrant, as bad as bad can be, dreadful; horrid, horrible; dire; rank, peccant, foul, fulsome; rotten, rotten at the core.    vile, base, villainous; mean etc. (paltry) 643; injured &c.; deteriorated etc. 659; unsatisfactory, exceptionable indifferent; below par etc. (imperfect) 651; illcontrived, ill-conditioned; wretched, sad, grievous, deplorable, lamentable; pitiful, pitiable, woeful etc. (painful) 830.    evil, wrong; depraved etc. 945; shocking; reprehensible etc. (disapprove) 932.    hateful, hateful as a toad; abominable, detestable, execrable, cursed, accursed, confounded; damned, damnable; infernal; diabolic etc. (malevolent) 907.    unadvisable etc. (inexpedient) 647; unprofitable etc. (useless) 645; incompetent etc. (unskillful) 699; irremediable etc. (hopeless) 859.    ... show more

Roget 169: unproductive, acarpous^†, inoperative, barren, addled, infertile, unfertile, unprolific^†, arid, sterile, unfruitful, infecund^†; sine prole; fallow; teemless^†, issueless^†, fruitless; unprofitable etc. (useless) 645; null and void, of no effect.    ... show more

Roget 645: useless, inutile, inefficacious, futile, unavailing, bootless; inoperative etc. 158; inadequate etc. (insufficient) 640; inservient^†, unsubservient; inept, inefficient etc. (impotent) 158; of no avail etc. (use) 644; ineffectual etc. (failure) 732; incompetent etc. (unskillful) 699; stale, flat and unprofitable;" superfluous etc. (redundant) 641; dispensable; thrown away etc. (wasted) 638; abortive etc. (immature) 674.    worthless, valueless, priceless; unsalable; not worth a straw etc. (trifling) 643, dear at any price.    vain, empty, inane; gainless^†, profitless, fruitless; unserviceable, unprofitable; ill-spent; unproductive etc. 169; hors de combat [Fr.]; effete, past work etc. (impaired) 659; obsolete etc. (old) 124; fit for the dust hole; good for nothing; of no earthly use; not worth having, not worth powder and shot; leading to no end, uncalled for; unnecessary, unneeded.    ... show more

Dutch: onrendabel
Polish: niekorzystny