Definition for Effectiveness:

• capacity to produce strong physiological or chemical effects; " the toxin's potency"; " the strength of the drinks"

Synonyms for Effectiveness:

• n.

  •
  • efficaciousness,
  • efficacy,
  • effect,
  • influence.
  •attribute (noun)
  • strength,
  • effectualness,
  • effectivity,
  • potency,
  • effectuality.
  •effect (noun)
  • effectualness,
  • effectuality,
  • efficaciousness.
  •effectiveness (noun)
  • strength,
  • effectualness,
  • effectivity,
  • potency,
  • effectuality.
  •efficacy (noun)
  • capableness,
  • efficacy.
  •energy (noun)
  • peppiness,
  • sprightliness,
  • get-up-and-go,
  • forcefulness.
  •expedience (noun)
  • desirability,
  • well-timedness,
  • aptness,
  • suitability,
  • propriety,
  • expedience,
  • convenience,
  • advantageousness,
  • efficiency,
  • opportunity,
  • timeliness,
  • fitness.
  •influence (noun)
  • clout,
  • capability,
  • efficiency,
  • performance,
  • punch,
  • potency,
  • success,
  • weight,
  • point,
  • vigor,
  • cogency,
  • validity,
  • forcefulness,
  • use,
  • efficacy,
  • force,
  • effect,
  • verve,
  • strength,
  • power.
  •oomph (noun)
  • oomph.

• Other synonyms:

  •
  • efficaciousness,
  • leadership.
  •
  • energy,
  • efficacy,
  • use.
  •
  • effect,
  • influence.
  •Other relevant words:
  • capacity,
  • impact,
  • say,
  • ascendancy,
  • brute force,
  • effective,
  • It,
  • oomph,
  • powerfulness,
  • Efficacity,
  • height,
  • dexterity,
  • durability,
  • strong language,
  • kingship,
  • force majeure,
  • moxie,
  • punch,
  • compulsion,
  • military posture,
  • strong suit,
  • charge,
  • amperage,
  • peppiness,
  • effect,
  • purpose,
  • persistence,
  • paramountcy,
  • worth,
  • verve,
  • gusto,
  • dominance,
  • authorization,
  • hegemony,
  • mordancy,
  • profitability,
  • lordship,
  • consequence,
  • get-up-and-go,
  • Nervosity,
  • forte,
  • push,
  • intensity,
  • effectuality,
  • clout,
  • causticity,
  • headship,
  • bite,
  • zenith,
  • zest,
  • ability,
  • command,
  • military capability,
  • cogence,
  • action,
  • vigor,
  • vim,
  • first place,
  • mightiness,
  • sinew,
  • Armipotence,
  • adroitness,
  • purposefulness,
  • influence,
  • performance,
  • metier,
  • long suit,
  • might and main,
  • functionality,
  • flower power,
  • mastery,
  • Imperium,
  • experience,
  • pull,
  • charisma,
  • jurisdiction,
  • expediency,
  • vigour,
  • beef,
  • specialty,
  • military strength,
  • point,
  • result,
  • life,
  • expertise,
  • gain,
  • pizzazz,
  • sharpness,
  • practicability,
  • helpfulness,
  • drive,
  • speciality,
  • superpower,
  • success,
  • top spot,
  • significance,
  • power,
  • attitude,
  • directorship,
  • puissance,
  • management,
  • profit,
  • highest,
  • efficacy,
  • authorisation,
  • vehemence,
  • zing,
  • guts,
  • authority,
  • vigorousness,
  • position,
  • applicability,
  • power structure,
  • fruitfulness,
  • service,
  • zip,
  • convincingness,
  • wattage,
  • harshness,
  • impressiveness,
  • power pack,
  • edge,
  • superiority,
  • rule,
  • steam,
  • maximum,
  • virility,
  • practicality,
  • skill,
  • utility,
  • availability,
  • most,
  • persuasiveness,
  • acrimony,
  • duress,
  • competence,
  • posture,
  • dint,
  • sovereignty,
  • ginger,
  • dominion,
  • strong point,
  • strength,
  • championship,
  • presidency,
  • energy,
  • capability,
  • expertness,
  • lastingness,
  • use,
  • urgency,
  • virtue,
  • benefit,
  • capableness,
  • operability,
  • efficaciousness,
  • nervousness,
  • Prepotency,
  • control,
  • pungency,
  • might,
  • enduringness,
  • virulence,
  • serviceability,
  • palm,
  • weight,
  • full force,
  • Mana,
  • Sinewiness,
  • forcefulness,
  • help,
  • impression,
  • force,
  • record,
  • productivity,
  • palms,
  • potential,
  • trenchancy,
  • leadership,
  • effectivity,
  • primacy,
  • effectualness,
  • value,
  • acme,
  • activity,
  • incisiveness,
  • mastership,
  • potency,
  • supremacy,
  • sway,
  • Black Power,
  • adeptness,
  • adequacy,
  • first prize,
  • cogency,
  • vitality,
  • potentiality,
  • Potence,
  • validity,
  • usability,
  • know-how,
  • full blast,
  • persuasion,
  • proficiency,
  • active ingredient,
  • usefulness,
  • productiveness,
  • advantage,
  • poignancy,
  • Skilfulness,
  • ne plus ultra,
  • sprightliness,
  • power struggle,
  • poop,
  • intensity level.

Antonyms for Effectiveness:

• n.

  • attribute
    ineffectiveness.
  • influence
    impotence, incompetence, inability, uselessness, inefficiency, idleness, weakness, failure, disability, lethargy, ineffectiveness.
  • Other antonyms:
    inefficiency, unsoundness, inadequateness, powerlessness, weakness, shakiness, feebleness, invalidity, inconclusiveness.

• Other antonyms:

  • n. t.
    failure, feebleness, idleness, inadequateness, inconclusiveness, inefficiency, invalidity, unsoundness, uselessness, unproductivity.