effective
gb/ɪfˈɛktɪv/ us/ɪfˈɛktɪv/
B1
Inglés
~ 1100
Acepciones
0 acepciones
adjective
B1
property
1
Producing the desired result
Able to produce the result you want.
Patrón de uso:
[something] is effective at [doing something]
Error frecuente:
Learners sometimes confuse 'effective' with 'efficient'. 'Effective' means it works well, while 'efficient' means it works well with little waste.
Sinónimos
successful (Emphasizes achieving a goal, sometimes with broader scope than 'effective'.)
|
efficient (Focuses on achieving results with minimal waste of time or resources.)
Antónimos
ineffective (Direct opposite; fails to produce the intended result.)
|
useless (Stronger and more negative; of no practical use.)
Colocaciones
highly effective
|effective method
|effective strategy
|effective communication
|effective treatment
Temas
business
|daily life
|problem solving
|core_vocabulary
|work
Ejemplos
- This new medicine is highly effective against the virus.
- The training program was effective in improving staff performance.
- Her speech was effective in changing public opinion.
- Regular exercise is effective at reducing stress.
- The new policy proved effective after just a few weeks.
Ejemplos para estudiantes
- The new rules are effective in schools.
- This cream is effective for dry skin.
- Exercise is effective for good health.
- The plan is effective and easy to follow.
adjective
formal
B2
property
2
In operation from a given time
Starting to be used or done from a certain time.
Patrón de uso:
effective [date/time]
Error frecuente:
Learners may confuse this meaning with 'effective' meaning 'good at producing results'; here it refers to the start of official use.
Sinónimos
operative (More technical/legal term for being in force.)
Antónimos
expired (No longer valid or in effect.)
Colocaciones
effective immediately
|effective date
|effective from
|effective as of
Temas
law
|business
Ejemplos
- The new law will be effective from January 1st.
- The changes are effective immediately.
- Her promotion is effective as of next Monday.
- The policy becomes effective upon signature.
Ejemplos para estudiantes
- The rule is effective today.
- My new job is effective next week.
- The law is effective from May 1.
adjective
formal
C1
property
3
Existing in fact, not formally recognized
Real or true in fact, even if not official.
Sinónimos
actual (Emphasizes real existence regardless of formal status.)
Antónimos
nominal (Refers to something existing in name only without real power or effect.)
Colocaciones
effective leader (de facto)
|effective control
|effective power
Temas
law
|politics
|core_vocabulary
Ejemplos
- He is the country's effective ruler, though not elected.
- They have effective control over the region.
- She became the effective head of the department after her boss resigned.
Ejemplos para estudiantes
- She is the effective boss here.
- He has effective control of the team.
- They are the effective leaders now.
Gramática
Forma de diccionario
effective
AFI
GB/ɪfˈɛktɪv/
US/ɪfˈɛktɪv/
Sílabas y acento
ef - fect - ive (3 sílabas)
Stress on 2nd syllable (fect)
Formas de la palabra
Adjective
- Base: effective
Familia de palabras
Core family
Negative and opposite forms
Expresiones
effective date
1/ɪfˈɛktɪv dˈeɪt/
fixed phrase
formal
Official start date of something
The day when something starts to be used or done by law or rule.
Ejemplos
- The contract's effective date is July 1st.
- Check the policy's effective date before signing.
effective immediately
1/ɪfˈɛktɪv ɪmˈidiɪtli/
fixed phrase
formal
Starting now without delay
Starting right now, without waiting.
Ejemplos
- Your suspension is effective immediately.
- The price increase is effective immediately.