Synonyms for Efficient:

• adj.

  •adept, effective (adjective)
  • able,
  • accomplished,
  • active,
  • adapted,
  • adequate,
  • apt,
  • businesslike,
  • capable,
  • clever,
  • competent,
  • conducive,
  • decisive,
  • deft,
  • dynamic,
  • economic,
  • economical,
  • effectual,
  • efficacious,
  • energetic,
  • equal to,
  • experienced,
  • expert,
  • handy,
  • masterly,
  • organized,
  • potent,
  • powerful,
  • practiced,
  • productive,
  • proficient,
  • profitable,
  • qualified,
  • ready,
  • saving,
  • shrewd,
  • skilled,
  • skillful,
  • systematic,
  • talented,
  • tough,
  • useful,
  • valuable,
  • virtuous,
  • Fitted,
  • familiar with,
  • good for,
  • well-organized,
  • good at.
  •economical (adjective)
  • timesaving,
  • time-saving,
  • unwasteful.
  •effective (adjective)
  • potent.
  •expedient (adjective)
  • accommodating,
  • advantageous,
  • commodious,
  • convenient,
  • desirable,
  • effective,
  • expedient,
  • fit,
  • opportune,
  • suitable,
  • timely,
  • useful,
  • apt.
  •facile (adjective)
  • easy,
  • effortless,
  • fluent,
  • simple,
  • smooth,
  • uncomplicated,
  • adroit,
  • deft,
  • dexterous,
  • facile,
  • handy.
  •forcible (adjective)
  • forcible,
  • puissant.
  •influential (adjective)
  • operative.
  •methodical (adjective)
  • Methodic,
  • Systematical.
  •ordered (adjective)
  • arranged,
  • balanced,
  • consistent,
  • harmonious,
  • methodical,
  • normal,
  • ordered,
  • regular,
  • stable,
  • steady,
  • symmetrical,
  • systematic,
  • tight,
  • uniform.
  •orderly (adjective)
  • systematic.
  •skillful (adjective)
  • able,
  • accomplished,
  • adept,
  • adroit,
  • agile,
  • ambidextrous,
  • apt,
  • artful,
  • capable,
  • clever,
  • competent,
  • crafty,
  • cunning,
  • deft,
  • dexterous,
  • expert,
  • facile,
  • genius,
  • handy,
  • masterful,
  • nimble,
  • proficient,
  • skilled,
  • skillful,
  • talented,
  • versatile,
  • Sure-footed,
  • crack.
  •virtuous (adjective)
  • virtuous.

• n.

  •
  • active,
  • adapted,
  • adequate,
  • assiduous,
  • committed,
  • conscientious,
  • decisive,
  • diligent,
  • dynamic,
  • energetic,
  • equal to,
  • experienced,
  • incompetent,
  • inefficient,
  • potent,
  • practical,
  • practiced,
  • productive,
  • qualified,
  • sedulous,
  • shrewd,
  • tireless,
  • tough,
  • Fitted,
  • familiar with,
  • hard-working.
  •
  • conducive,
  • fitting,
  • functional,
  • helpful,
  • high-powered,
  • ineffectual,
  • profitable,
  • saving,
  • serviceable,
  • suited,
  • thrifty,
  • valuable,
  • worthwhile.
  •
  • thrive.
  •
  • industrious.
  •efficient (noun)
  • businesslike,
  • competent,
  • cost-effective,
  • cost-efficient,
  • economic,
  • economical,
  • effective,
  • expeditious,
  • high-octane,
  • prompt,
  • streamlined,
  • timesaving,
  • underspent.

• Other synonyms:

  •
  • constructive,
  • functional,
  • industrious,
  • invaluable,
  • proven,
  • tireless,
  • usefully,
  • worthwhile,
  • hard-working,
  • time-saving,
  • well-run.
  •
  • effectively,
  • handily,
  • helpful,
  • operable,
  • operational,
  • productive,
  • responsible,
  • tailored,
  • utilitarian,
  • valuable,
  • Overworked,
  • online.
  •
  • powerful,
  • priceless,
  • tailor-made,
  • working.
  •
  • robust.
  •
  • strong.
  •
  • good.
  •convincing
  • persuasive.
  •genuine
  • valid.
  •independent
  • self-sufficient.
  •matter of fact
  • practical.
  •Other relevant words:
  • abide,
  • ability,
  • able,
  • absolutely,
  • accept,
  • active,
  • actively,
  • actor,
  • adapted,
  • adequate,
  • adequately,
  • agency,
  • agent,
  • allow,
  • almighty,
  • applicable,
  • artifice,
  • assiduous,
  • astutely,
  • au fait,
  • authentically,
  • authoritative,
  • automated,
  • available,
  • banausic,
  • beneficially,
  • bide,
  • biting,
  • body,
  • brilliant,
  • brisk,
  • briskly,
  • broker,
  • busily,
  • businesslike,
  • capability,
  • capacity,
  • carefully,
  • cautiously,
  • cleverly,
  • cloth,
  • cogent,
  • committed,
  • compact,
  • competently,
  • completely,
  • conducive,
  • conscientious,
  • constructive,
  • conveniently,
  • cost-effective,
  • cost-efficient,
  • craft,
  • creatively,
  • cunningly,
  • dandy,
  • decisive,
  • deputy,
  • dexterity,
  • dexterously,
  • diligent,
  • dynamic,
  • economic,
  • economical,
  • economically,
  • educated,
  • effectively,
  • effectiveness,
  • effectual,
  • effectually,
  • efficacious,
  • efficiency,
  • efficiently,
  • empirical,
  • endure,
  • energetic,
  • energetically,
  • entirely,
  • equal,
  • equal to,
  • excellent,
  • expeditious,
  • experienced,
  • faculty,
  • fast,
  • feasible,
  • feel,
  • finesse,
  • finished,
  • fitting,
  • fleet,
  • flourishing,
  • forceful,
  • forcible,
  • fresh,
  • frugal,
  • frugally,
  • fruitful,
  • functional,
  • get,
  • gifted,
  • good,
  • hackneyed,
  • handily,
  • happy,
  • have,
  • helpful,
  • helpfully,
  • high-octane,
  • high-powered,
  • imaginatively,
  • in effect,
  • in practice,
  • industrious,
  • ineffectual,
  • inefficient,
  • infallible,
  • influential,
  • informed,
  • ingenious,
  • ingeniously,
  • initiated,
  • invaluable,
  • inventively,
  • journeyman,
  • knack,
  • knowing,
  • knowledgeable,
  • let,
  • licensed,
  • live,
  • lively,
  • logically,
  • lose,
  • lucrative,
  • master,
  • masterly,
  • material,
  • matter,
  • meet,
  • methodically,
  • modern,
  • modernistic,
  • modernized,
  • multipotent,
  • musician,
  • neat,
  • neatly,
  • no-nonsense,
  • official,
  • omnipotent,
  • operable,
  • operational,
  • operative,
  • operatively,
  • orderly,
  • organized,
  • pay,
  • performer,
  • permit,
  • persuasive,
  • polished,
  • potent,
  • potential,
  • power,
  • powerful,
  • practicable,
  • practical,
  • practically,
  • practiced,
  • practised,
  • pragmatic,
  • pragmatical,
  • pragmatically,
  • prepared,
  • priceless,
  • pricking,
  • primed,
  • productive,
  • productively,
  • professional,
  • professionally,
  • proficiently,
  • profitable,
  • prompt,
  • proper,
  • prosperous,
  • proven,
  • puissant,
  • purposefully,
  • qualified,
  • quick,
  • rapid,
  • ready,
  • real,
  • realistic,
  • realizable,
  • really,
  • reasonable,
  • reasonably,
  • receive,
  • responsible,
  • robust,
  • sagacious,
  • sagaciously,
  • sage,
  • saving,
  • savvy,
  • scotch,
  • seasoned,
  • sedulous,
  • self-sufficient,
  • serviceable,
  • severe,
  • shrewd,
  • shrewdly,
  • simplified,
  • skilful,
  • skill,
  • skillfully,
  • smart,
  • sound,
  • soundly,
  • sparingly,
  • speedy,
  • stand,
  • streamlined,
  • strong,
  • stuff,
  • substance,
  • successful,
  • suffer,
  • suited,
  • swift,
  • systematically,
  • tailor-made,
  • tailored,
  • take,
  • telling,
  • thorough,
  • thoroughly,
  • thrifty,
  • thrive,
  • timesaving,
  • tireless,
  • tolerate,
  • tough,
  • toughly,
  • trained,
  • trim,
  • undergo,
  • underspent,
  • up to,
  • usable,
  • useable,
  • usefully,
  • useless,
  • utilitarian,
  • valid,
  • validation,
  • validly,
  • valuable,
  • versed,
  • veteran,
  • vigorous,
  • virtuous,
  • vivacious,
  • well-qualified,
  • wise,
  • workable,
  • working,
  • workmanlike,
  • worthwhile,
  • worthy,
  • Fitted,
  • Methodic,
  • Overworked,
  • Plenipotent,
  • Thoroughpaced,
  • Systematical,
  • familiar with,
  • overqualified,
  • online,
  • capable of,
  • good for,
  • hard-working,
  • time-saving,
  • well-run,
  • well-versed,
  • Labour-saving,
  • fitted for,
  • well-organized,
  • on the ball,
  • unwasteful,
  • fit for,
  • good at,
  • ultra-modern,
  • up to snuff,
  • well up in,
  • well-suited.

Antonyms for Efficient:

• adj.

  • adept, effective
    delicate, fragile, helpless, idle, impotent, inactive, inadequate, incapable, incompetent, ineffective, inefficient, inept, lazy, powerless, sluggish, unable, unskilled, unskillful, useless, weak, worthless.
  • all
    inefficient.
  • Other antonyms:
    abortive, bootless, counterproductive, empty, fruitless, futile, hollow, idle, incapable, incompetent, ineffective, ineffectual, inefficient, inexperienced, inexpert, inoperative, pointless, unavailing, uneconomical, unfruitful, unproductive, unprofitable, unqualified, unseasoned, unskilled, unskillful, unsuccessful, useless, vain, wasteful, worthless.

• Other antonyms:

  • n. t.
    counterproductive, cowboy, delicate, disorganized, fragile, fruitless, futile, helpless, hollow, idle, impotent, inactive, inadequate, incapable, incompetent, ineffective, ineffectual, inefficient, inept, inexperienced, inexpert, inoperative, pointless, powerless, slipshod, sloppy, sluggish, unable, unavailing, uneconomical, uneffective, unfruitful, unproductive, unprofitable, unqualified, unseasoned, unskilled, unskillful, unsuccessful, useless, wasteful, weak, worthless, Unbusinesslike.