Synonyms for In-effectual:

• adj.

  •abortive (adjective)
  • useless,
  • failed,
  • ineffectual,
  • Miscarried,
  • failing.
  •empty (adjective)
  • dumb,
  • unintelligent,
  • cheap,
  • unsubstantial,
  • dead,
  • otiose,
  • insipid,
  • insincere,
  • banal,
  • unsatisfactory,
  • fatuous,
  • silly,
  • senseless,
  • inexpressive,
  • deadpan,
  • trivial,
  • flat,
  • meaningless,
  • inane,
  • expressionless,
  • vacuous,
  • frivolous,
  • unreal,
  • jejune,
  • dishonest,
  • petty,
  • ignorant,
  • hollow,
  • purposeless,
  • vapid,
  • aimless,
  • valueless,
  • devoid.
  •feckless (adjective)
  • careless,
  • irresponsible,
  • incautious,
  • uncareful,
  • fustian,
  • carefree,
  • wild,
  • shiftless,
  • reckless,
  • good-for-nothing.
  •feeble (adjective)
  • infirm,
  • frail,
  • enervated,
  • woozy,
  • gentle,
  • etiolated,
  • unconvincing,
  • slight,
  • poor,
  • low,
  • enfeebled,
  • insubstantial,
  • flabby,
  • weakened,
  • ailing,
  • chicken,
  • zero,
  • exhausted,
  • thin,
  • fragile,
  • effete,
  • out of gas,
  • Strengthless,
  • faint,
  • wimpy,
  • doddering,
  • vitiated,
  • puny,
  • debilitated,
  • emasculated,
  • languid,
  • sapless,
  • delicate,
  • dopey,
  • decrepit,
  • aged,
  • weakly,
  • helpless,
  • sickly,
  • tame.
  •fruitless (adjective)
  • infertile,
  • empty,
  • sterile,
  • wild goose chase,
  • to no effect,
  • to no avail,
  • spinning one's wheels,
  • pointless,
  • unprolific,
  • unavailable,
  • Gainless,
  • in vain,
  • profitless.
  •futile (adjective)
  • impracticable,
  • delusive,
  • unimportant,
  • save one's breath,
  • out the window,
  • no dice,
  • on a treadmill,
  • impractical,
  • to no purpose,
  • unneeded,
  • Resultless,
  • forlorn,
  • trifling.
  •impotent (adjective)
  • dud,
  • nerveless,
  • incapacitated,
  • paper tiger,
  • gutless,
  • crippled,
  • Infecund,
  • prostrate,
  • paralyzed,
  • incapable.
  •incompetent (adjective)
  • disqualified,
  • uninitiated,
  • awkward,
  • clumsy,
  • amateur,
  • amateurish,
  • ineligible,
  • Unhandy,
  • raw,
  • not have it,
  • untrained,
  • unequipped,
  • unadapted,
  • bungling,
  • out to lunch,
  • inexpert,
  • unfit,
  • not cut out for,
  • unfitted,
  • unskilled,
  • maladroit,
  • unqualified,
  • not equal to,
  • bush-league,
  • Floundering,
  • unproficient,
  • inexperienced.
  •ineffective (adjective)
  • not effective,
  • emasculate,
  • no go,
  • slack-spined,
  • no way.
  •ineffective/ineffectual (adjective)
  • feeble,
  • nugatory,
  • abortive,
  • null and void,
  • inferior,
  • neutralized,
  • powerless,
  • paltry,
  • forceless,
  • inoperative,
  • innocuous,
  • spineless,
  • defeasible,
  • unprofitable,
  • invertebrate,
  • inept,
  • indecisive,
  • withered,
  • unfruitful,
  • limited,
  • fruitless,
  • worthless,
  • lame,
  • incompetent,
  • unsuccessful,
  • barren,
  • void,
  • null,
  • feckless,
  • bootless,
  • inefficacious,
  • anticlimactic.
  •ineffectual (adjective)
  • idle,
  • futile,
  • ineffective,
  • weak,
  • vain,
  • unavailing,
  • unproductive,
  • impotent,
  • unable,
  • inefficient,
  • insufficient,
  • hopeless,
  • inadequate.
  •inefficient (adjective)
  • sloppy,
  • unskillful,
  • slack,
  • improvident,
  • can't hack it,
  • slovenly,
  • improficient,
  • extravagant,
  • half-baked,
  • unprepared,
  • prodigal,
  • disorganized,
  • faulty,
  • shooting blanks,
  • slipshod.
  •limited (adjective)
  • diminished,
  • narrow,
  • minimal,
  • small,
  • little,
  • cramped,
  • set,
  • restricted,
  • reduced,
  • mean.
  •little (adjective)
  • contemptible,
  • self-centered,
  • selfish,
  • illiberal,
  • small-minded,
  • provincial,
  • base,
  • vulgar,
  • hidebound,
  • wicked,
  • bigoted.
  •mean (adjective)
  • plebeian,
  • shabby,
  • miserable,
  • unwashed,
  • squalid,
  • scruffy,
  • beggarly,
  • ordinary,
  • mediocre,
  • proletarian,
  • second-class,
  • pitiful,
  • humble,
  • obscure,
  • tawdry,
  • common,
  • ignoble,
  • down-at-heel,
  • sordid,
  • lowborn,
  • menial,
  • undistinguished,
  • hack,
  • insignificant,
  • run-down,
  • wretched,
  • lowly,
  • seedy,
  • servile,
  • modest,
  • second-rate.
  •mousy (adjective)
  • diffident,
  • bashful,
  • pale,
  • unassuming,
  • unassertive,
  • timid,
  • timorous,
  • dull,
  • shy,
  • plain,
  • self-effacing,
  • colorless,
  • indeterminate.
  •no-account (adjective)
  • Drossy.
  •pale (adjective)
  • bloodless,
  • livid,
  • ashy,
  • bleached,
  • anemic,
  • ashen,
  • cadaverous,
  • sick,
  • faded,
  • whitish,
  • pasty,
  • gray,
  • ghastly,
  • blanched,
  • waxen,
  • dim,
  • haggard,
  • white,
  • wan,
  • pallid,
  • doughy,
  • lurid,
  • washed-out,
  • spectral,
  • sallow,
  • waxlike,
  • deathlike.
  •paltry (adjective)
  • piddling,
  • sorry,
  • minor,
  • meager,
  • trashy,
  • shoddy,
  • vile,
  • despicable,
  • low-down,
  • sleazy,
  • measly,
  • derisory,
  • inconsiderable,
  • Unconsequential,
  • picayune.
  •pointless (adjective)
  • nonsensical,
  • needle in haystack,
  • remote,
  • around in circles,
  • unnecessary,
  • stupid,
  • irrelevant,
  • on treadmill,
  • absurd,
  • not pertinent,
  • going nowhere,
  • inconsequential,
  • Purportless,
  • uninteresting,
  • nongermane,
  • vague,
  • in vicious circle.
  •powerless (adjective)
  • wimp,
  • blank,
  • disenfranchised,
  • passive,
  • supine,
  • unarmed,
  • wishy-washy,
  • tied,
  • dependent,
  • inert,
  • defenseless,
  • disabled,
  • vulnerable,
  • subject.
  •small (adjective)
  • light,
  • secondary,
  • negligible,
  • minor-league,
  • lower,
  • lesser,
  • small-fry,
  • unessential,
  • small-time,
  • minute.
  •spineless (adjective)
  • fearful,
  • squeamish,
  • amoebalike,
  • frightened,
  • soft,
  • lily-livered,
  • irresolute,
  • weak-willed,
  • faint-hearted,
  • yellow,
  • yellow-bellied,
  • submissive,
  • vacillating,
  • Pithless,
  • spiritless,
  • weak-kneed.
  •unable (adjective)
  • out of commission,
  • can't cut it,
  • hog-tied,
  • not up to,
  • Impuissant,
  • not able,
  • no good,
  • no can do,
  • can't make the grade,
  • sidelined.
  •unsuccessful (adjective)
  • disastrous,
  • ill-fated,
  • unlucky,
  • thwarted,
  • doomed,
  • defeated,
  • foiled,
  • losing.
  •unworkmanlike (adjective)
  • inapt.
  •useless (adjective)
  • dysfunctional,
  • counterproductive,
  • nonfunctional,
  • unusuable,
  • of no use,
  • waste,
  • Unpurposed,
  • expendable,
  • unworkable,
  • scrap,
  • unfunctional,
  • disadvantageous,
  • inutile.
  •void (adjective)
  • unconfirmed,
  • Avoided,
  • Voided,
  • unratified,
  • negated,
  • unsanctioned,
  • bad,
  • set aside,
  • unenforceable,
  • not viable,
  • invalid.
  •wan (adjective)
  • discolored,
  • worn,
  • bilious,
  • peaked.
  •weak (adjective)
  • incomplete,
  • unreliable,
  • handicapped,
  • wanting,
  • hesitant,
  • substandard,
  • shaky,
  • pathetic,
  • green,
  • unsure,
  • inconclusive,
  • uncertain,
  • unbelievable,
  • palsied,
  • immature,
  • undependable,
  • incredible,
  • slim,
  • nervous,
  • inconceivable,
  • wavering,
  • insecure,
  • unstable,
  • shallow,
  • improbable,
  • tender,
  • laid-back,
  • lacking,
  • thick,
  • Fluctuant,
  • flimsy,
  • wobbly,
  • implausible.
  •wishy-washy (adjective)
  • cowardly,
  • namby-pamby,
  • watered-down,
  • watery,
  • flavorless,
  • characterless,
  • listless,
  • tasteless.
  •worthless (adjective)
  • no-account,
  • unusable,
  • no-good,
  • nothing,
  • abandoned,
  • abject,
  • bogus.

Antonyms for In-effectual:

• adj.

  • abortive
    profitable, complete, fruitful, successful, consummated.
  • empty
    entire, full, meaningful, valuable, replete, abundant, copious, raised, satisfied, filled, sated, worthwhile.
  • feckless
    purposeful, responsible.
  • feeble
    firm, healthy, solid, hearty, expert, hardy, sound, fit, unbreakable.
  • fruitless
    plentiful, potent.
  • futile
    helpful, hopeful.
  • impotent
    fertile, skillful, dexterous, skilled.
  • incompetent
    experienced, qualified, adept, proficient.
  • ineffective/ineffectual
    powerful, useful, efficient, strong.
  • ineffectual
    adequate, effective, enough, effectual, able, competent, productive, capable, sufficient.
  • inefficient
    neat, tidy.
  • limited
    generous, satisfactory, open, ok, indefinite, broad-minded, unrestricted, unlimited, unbounded, limitless.
  • little
    large, magnificent, important, huge, massive, liberal, noble, enormous, great, magnanimous, immense, big, giant, open-minded, kind.
  • mean
    abnormal, high, unselfish, aristocratic, extraordinary, elevated, compassionate, uncommon, sympathetic, polite, rich, honest, moral, superior, extreme, nice.
  • mousy
    extroverted, fixed-up, beautiful, fancy.
  • pale
    radiant, bright, dark, flushed, happy, intelligent, smart, heavy, colored, distinct, clear, colorful, light, glowing.
  • paltry
    plenty, wealthy, significant, worthy, consequential, substantial.
  • pointless
    sensible, beneficial, pointed, wise, necessary.
  • powerless
    dominant, lively, active.
  • small
    distinguished, first-rate, giving, famous, major, fine, benevolent, first-class, excellent, untrivial, considerate.
  • spineless
    bold, brave.
  • unable
    talented.
  • unsuccessful
    lucky.
  • useless
    usable, working.
  • void
    occupied, valid.
  • wan
    blushing, fresh.
  • weak
    definite, sure, determined, secure, loud, safe, confident, unshaky, certain, unwavering, stable, concentrated, protected, guarded, thick, noisy, steady.
  • wishy-washy
    exciting, interesting, dynamic.