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Dictionary-enhanced synonyms

Synonyms for “Questionable” — 4 Other Ways to Say It

Not definitely good or certainly true; open to doubt.

IPA: /ˈkwɛstʃənəbəl/Level: B2Register: formalPart of speech: adj

Meaning of Questionable

Doubtful or uncertain in quality; not clearly true or reliable.

How to Pronounce Questionable

IPA: /ˈkwɛstʃənəbəl/ Stress: Oooo

Stress the first syllable: QUES-chun-uh-bul.

Full pronunciation guide for questionable →

4 Synonyms for Questionable — Words Similar to Questionable

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

doubtful

/ˈdaʊtfəl/
adj B2

Feeling unsure about something or thinking that something might not be true or will not happen.

Example: I am doubtful about the accuracy of this information.

dubious

/ˈdjuːbiəs/
adj C1 Formal

Something uncertain about or do not trust to be true.

Example: The study's methodology is dubious, raising concerns about validity of conclusions.

Smart Synonyms for Questionable — When to Use Each

doubtful

when emphasizing personal uncertainty or skepticism

dubious

when suggesting suspicion that something is dishonest

uncertain

for neutral lack of clarity without judgment

How to Use Questionable and Its Synonyms in Sentences

  • That claim has questionable evidence supporting it. B1
  • His methods are questionable from an ethical standpoint. B2
  • The questionable quality of the product disappointed customers. B2

Common Word Choice Mistakes with Questionable

Not natural: The reliability of that source is very questionable.

Better: The reliability of that source is quite questionable.

Use "quite" or "highly" with questionable; "very" is less natural.

Frequently Asked Questions About Synonyms of Questionable

What is another word for "questionable"?

Common synonyms for "questionable" include: doubtful, uncertain, dubious, unclear.

What can I say instead of "questionable"?

Try one of these alternatives: doubtful, uncertain, dubious, unclear. Pick the synonym whose register and meaning fits your sentence — see the cards above for definitions and examples.

Is "questionable" formal or informal?

"questionable" is generally used in formal contexts. Use it in writing, business, and academic settings.

When should I use "questionable" instead of "doubtful"?

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

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