useless

I

(Roget's IV) modif.

1. [Unserviceable]

Syn. worthless, unusable, inutile, ineffectual, expendable, incompetent, of no use, ineffective, inoperative, broken, dysfunctional, counterproductive, inefficient, unprofitable, no damn good*.

Ant. efficient*, usable, operative.

2. [Futile]

Syn. futile, vain, unavailing, fruitless; see hopeless 2 .

See Synonym Study at futile .

II

(Roget's 3 Superthesaurus) a.

worthless, of no use, unavailing, unserviceable, ineffectual, ineffective, to no avail, unproductive, unprofitable, futile, vain.

ANT.: useful, valuable, helpful

III

(Roget's Thesaurus II) adjective 1. Having no useful purpose: ineffectual, inutile, unusable, worthless. See USED. 2. Incapable of being used or availed of to advantage: impracticable, impractical, unnegotiable, unserviceable, unusable, unworkable. See USED. 3. Having no useful result: barren, bootless, fruitless, futile, unavailing, unprofitable, unsuccessful, vain. Idiom: in vain. See THRIVE, USED. 4. Not having the desired effect: ineffective, ineffectual, inefficacious, inefficient. See AFFECT.