effectual

adj. able to produce the desired effect; effective; legally binding (Law)

Adjective
1. sufficient to produce a result; "a man to whom painting was but another and less effectual way of writing dramas or novels or history"
(antonym) ineffectual
(see-also) effective, efficacious
2. producing or capable of producing an intended result or having a striking effect; "an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation"-LewisMumford; "effective teaching methods"; "effective steps toward peace"; "made an effective entrance"; "his complaint proved to be effectual in bringing action"; "an efficacious law"
(synonym) effective, efficacious
(similar) hard-hitting, trenchant
(see-also) efficacious
(attribute) effectiveness, effectivity, effectualness, effectuality
3. exerting or capable of exerting strong physiological or chemical effects; "an effectual vaccine"
(similar) potent, strong

(n.)
Producing, or having adequate power or force to produce, an intended effect; adequate; efficient; operative; decisive.
  

adj.
effectual
گني, کام کا, کارگر, کاري, مؤثر, حکمي, مجرب, تير بہدف, تاثير بخش

Synonyms and related words:
able, achieving, active, actual, adequate, ascertained, attested, authenticated, authoritative, banausic, behind the scenes, binding, capable, categorically true, causal, causative, certain, certified, charismatic, charming, competent, conclusive, confirmed, consequential, constitutive, corroborated, decisive, demonstrated, determinative, determined, documentary, effective, efficacious, efficient, enchanting, equal to, established, estimable, etiological, factual, feasible, forceful, forcible, formative, fulfilling, functional, go, historical, important, in force, influential, institutive, lawful, legal, magnetic, momentous, not in error, objectively true, occasional, operable, operational, operative, originative, personable, persuasive, pivotal, potent, powerful, practicable, practical, pragmatic, prestigious, productive, proficient, proved, real, realizable, reputable, sound, strong, suasive, substantial, substantiated, sure-enough, telling, toothy, TRUE, true as gospel, truthful, unconfuted, undenied, undoubted, unerroneous, unfallacious, unfalse, unmistaken, unquestionable, unrefuted, up to, useful, valid, validated, veracious, verified, veritable, weighty, winning, workable,