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What is the Meaning of “Effective”?

Effective
/ɪˈfɛktɪv/
adjective B1 Tier 4 (Top 10,000 words) formal

Something that works well and produces good results; successful at doing what it is supposed to do.

Definition of Effective

Quick Meaning of Effective

Something that works well and produces good results; successful at doing what it is supposed to do.

Detailed Definition of Effective

Producing the desired or intended result; working well and achieving the purpose.

How to Pronounce Effective

IPA: /ɪˈfɛktɪv/
e fec tive

Stress pattern: oOo (3-syllable word).

Tip: Stress second syllable: ef-FEK-tiv. Rhymes with 'detective'.

Watch out: Often mispronounced as ef-FECK-tiv; correct stress is on second syllable: ef-FEK-tiv.

Full pronunciation guide for “effective” →

Origin and Etymology of Effective

From Old French 'effectif', from Latin 'effectivus' (actual, productive).

How to Use Effective in a Sentence

Each example shows “effective” with a CEFR level so learners can pick examples that match their fluency.

  • “Exercise is an effective way to improve your health.”
    B1 written
  • “The teacher's effective teaching methods kept the students interested.”
    B1 formal
  • “This cream is very effective for treating dry skin.”
    B1 conversation

Synonyms and Antonyms of Effective

Common Synonyms for Effective

Smart Synonyms for Effective — When to Use Each

efficient
when emphasizing doing something well with little waste
successful
when highlighting achieving the desired goal or outcome

Antonyms of Effective

See all synonyms for “effective” →

Common Collocations with Effective

These phrases pair with “effective” in everyday English:

  • effective treatment
  • effective method
  • highly effective
  • most effective
  • effective strategy

Common Mistakes When Using Effective

Even fluent speakers slip up with “effective”. Here’s how to avoid the most common errors:

✗ Wrong: The drug is very effective against the disease.
✓ Correct: The drug is very effective against the disease. or The drug is very effective for treating the disease.
Why: Both forms are correct, but 'for treating' is more specific than 'against'.
✗ Wrong: His advice was effective in help me solve the problem.
✓ Correct: His advice was effective in helping me solve the problem.
Why: After 'in', use the gerund form 'helping', not the base verb 'help'.

Other Forms of Effective

Frequently Asked Questions About Effective

What is the meaning of "Effective"?

Something that works well and produces good results; successful at doing what it is supposed to do.

How do you pronounce "Effective"?

The IPA is /ɪˈfɛktɪv/. Stress second syllable: ef-FEK-tiv. Rhymes with 'detective'.

What part of speech is "Effective"?

"Effective" is an adjective at B1 level (Common European Framework).

What are synonyms for "Effective"?

Common synonyms include efficient, successful, productive.

How do you use "Effective" in a sentence?

For example: "Exercise is an effective way to improve your health."

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