different between effective vs effectual
effective
English
Etymology
From French effectif, from Latin effect?vus (“productive; effective”), from effici? (“I make; I bring about”).
Pronunciation
- (weak vowel distinction) IPA(key): /??f?kt?v/
- (weak vowel merger) IPA(key): /??f?kt?v/
- Rhymes: -?kt?v
Adjective
effective (comparative more effective, superlative most effective)
- Having the power to produce a required effect or effects.
- Synonym: efficacious
- Producing a decided or decisive effect.
- 1650, Jeremy Taylor, The Rule and Exercises of Holy Living
- Whosoever is an effective, real cause of doing his neighbour wrong, is criminal.
- 1650, Jeremy Taylor, The Rule and Exercises of Holy Living
- Efficient, serviceable, or operative, available for useful work.
- Actually in effect.
- (geometry, of a cycle or divisor) Having no negative coefficients.
- (physics, for any effective theory) approximate; Not describing the fundamental dynamic changes in some system as they happen.
Usage notes
Webster's Revised Unabridged Dictionary from 1913 still lists efficient and effective as synonyms, but all major dictionaries now show that these words now only have different meanings in careful use. Use of both for the other meaning is however widespread enough that Longman's Exam Dictionary, for example, finds it necessary to proscribe the use of one for the other with several examples at each entry and provides the following summary:
- efficient = working quickly and without waste
- effective = having the desired effect
Related terms
Translations
Noun
effective (plural effectives)
- (military) a soldier fit for duty
- 1876, Dabney Herndon Maury, Southern Historical Society Papers: Volume 2, Number 4, Recollections of the Elkhorn Campaign:
- The Army of the West reached Corinth sometime after the battle of Shiloh. We were 15,000 effectives, and brought Beauregard's effective force up to 45,000 men.
- 1876, Dabney Herndon Maury, Southern Historical Society Papers: Volume 2, Number 4, Recollections of the Elkhorn Campaign:
French
Pronunciation
- IPA(key): /e.f?k.tiv/
- Homophone: effectives
Adjective
effective
- feminine singular of effectif
Latin
Adjective
effect?ve
- vocative masculine singular of effect?vus
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effectual
English
Alternative forms
- effectuall (obsolete)
Etymology
From Old French effectuel, from Late Latin effectualis.
Pronunciation
- IPA(key): /i?f?kt?u?l/
Adjective
effectual (comparative more effectual, superlative most effectual)
- Producing the intended result; entirely adequate.
Antonyms
- ineffectual
Derived terms
- effectualization
- effectualize
Related terms
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