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Dictionary-enhanced synonyms

Synonyms for “Impossible” — 5 Other Ways to Say It

Something that cannot be done or cannot happen under any circumstances.

IPA: /ɪmˈpɑːsəbəl/Level: A2Register: neutralPart of speech: adj

Meaning of Impossible

Not capable of being done or achieved; unable to happen.

How to Pronounce Impossible

IPA: /ɪmˈpɑːsəbəl/ Stress: oOoo

Stress the second syllable: im-POS-si-ble. The vowel sounds in the last two syllables are weak.

Full pronunciation guide for impossible →

5 Synonyms for Impossible — Words Similar to Impossible

Browse alternative words with their meaning, level, and a real example sentence so you pick the synonym that fits your context.

Smart Synonyms for Impossible — When to Use Each

unfeasible

when not capable of working

impractical

when theoretically possible but difficult

Antonyms of Impossible — Opposite Words

How to Use Impossible and Its Synonyms in Sentences

  • It is impossible for humans to live without water. A2
  • Getting there in five minutes is impossible in traffic. A2
  • The task was impossible to complete on time. B1

Frequently Asked Questions About Synonyms of Impossible

What is another word for "impossible"?

Common synonyms for "impossible" include: unfeasible, unachievable, out of the question, impractical, unrealistic.

What can I say instead of "impossible"?

Try one of these alternatives: unfeasible, unachievable, out of the question, impractical, unrealistic. Pick the synonym whose register and meaning fits your sentence — see the cards above for definitions and examples.

Is "impossible" formal or informal?

"impossible" is generally used in neutral contexts.

When should I use "impossible" instead of "unfeasible"?

Use "impossible" when you want to keep the exact nuance shown in the meaning section above; switch to "unfeasible" when you need a different register, level, or shade of meaning. Compare the cards above to decide.

What are the antonyms of "impossible"?

Words with the opposite meaning of "impossible" include: possible, achievable, feasible.

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