Word Study
feckless
CIDE DICTIONARY
feckless, a. [Perh. a corruption of effectless.].
Spiritless; weak; worthless. [1913 Webster]
OXFORD DICTIONARY
feckless, adj.
1 feeble, ineffective.
2 unthinking, irresponsible (feckless gaiety).
1 feeble, ineffective.
2 unthinking, irresponsible (feckless gaiety).
Derivative
fecklessly adv. fecklessness n.
Etymology
Sc. feck f. effeck var. of EFFECT
THESAURUS
feckless
aimless, barren, bootless, carefree, careless, counterproductive, easygoing, effete, empty, etiolated, fatuitous, fatuous, fruitless, fustian, futile, good-for-nothing, grasshopper, happy-go-lucky, heedless, impotent, improvident, inadequate, inadvertent, inane, incautious, ineffective, ineffectual, inefficacious, inoperative, invalid, irresponsible, lackadaisical, meaningless, negligent, no go, nonchalant, nugacious, nugatory, of no force, of no use, pointless, purposeless, reckless, remiss, shiftless, sterile, superfluous, thoughtless, thriftless, unavailing, uncaring, undependable, uneconomical, unheeding, unproviding, unpurposed, unreflective, unreliable, unthinking, unthrifty, untrustworthy, useless, vain, wild, worthless, wreckingFor further exploring for "feckless" in Webster Dictionary Online