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questionable - Master This Word

Master this word with our 5-step learning method – Learn English in English

questionable Word Meanings

  • doubtful or uncertain
  • open to question
  • not to be relied upon
Illustration for this word

questionable Example Sentences

Example sentences are the start of understanding. Don't rush to memorize. First feel how the word works in a sentence.

questionable Phonetic & Pronunciation

Pronunciation
UK /ˈkwɛs.tʃən.ə.bəl/
US /ˈkwɛs.tʃən.ə.bəl/
Syllables
questionable

questionable Word Etymology

Root decomposition: 'question' (from Latin 'quaestio') + suffix '-able'. Historical origin: Latin → Old French → English. Memory image: Imagine a detective facing a 'questionable' clue that could lead to a breakthrough or a dead end, representing doubt and uncertainty.

Note 1: These definitions and etymologies are not standard dictionary definitions, but extended explanations provided to help with memorization and understanding of the actual application of words. Through this background information, we strive to make words more vivid and easier to understand, and help you remember their meanings in real life.

Note 2: LexiTalk designs the learning flow around the linguistics principle of “Comprehensible Input.” When learners encounter material that is slightly above their level but still understandable from context, the brain naturally absorbs the language. That’s why we keep every word inside authentic contexts, using examples and associations to help you understand it and use it flexibly.

Read the FAQ explanation of Comprehensible Input

Real Context

Questionable is an adjective used to describe something that seems doubtful, uncertain, or open to doubt. It can refer to the reliability of information, the legitimacy of a claim, or the appropriateness of a decision. When something is questionable, you should treat it with skepticism and look for stronger evidence before accepting it as true. It carries a slightly stronger shade of doubt than uncertain, implying that the item in question may be unreliable, biased, or misleading. In everyday speech, you might warn a colleague about questionable data, a questionable source, or a questionable outcome.

Usage Reminders

  • Questionable is stronger than uncertain; it implies a lack of reliability.
  • Do not use with people to avoid sounding judgmental.
  • Pair with data, sources, or claims for clarity.
  • Check for evidence before accepting.
  • Contrast with suspicious when intent is malicious.

Common Misconceptions

  • It can describe people as untrustworthy.
  • It means something is definitely false.
  • It always implies malicious intent.
  • It is interchangeable with 'uncertain' in all contexts.
  • It should be used for casual everyday matters only.

Thinking Differences

Questionable marks a measured doubt about reliability that often feels stronger than mere uncertainty; English uses it to critique sources, data, or claims without blaming people. Learners sometimes apply it to people or everyday outcomes, which sounds odd in formal writing.

Learning Tips

  • Learn the contrast between questionable and uncertain.
  • Avoid using questionable to describe people or positive contexts.
  • Pair with data, sources, or claims for clear critique.
  • Check multiple sources before accepting a claim.
  • Note the tone shift toward skepticism in formal writing.
  • Practice with real-world reports to see nuance.

5-Step Learning Method - Learn English in English

Step 1: Meaning

What does the word 'questionable' mean?

A.Open to doubt or challenge
B.Not able to be questioned
C.Completely certain
D.Considered trustworthy
Step 2: Usage

Which sentence uses 'questionable' correctly?

A.His motives for helping were questionable.
B.The weather is questionable today.
C.She plays the piano in a questionable way.
D.That book is questionable because it's so popular.
Step 3: Similar Words

Which word is a synonym for 'questionable'?

A.Clear
B.Certainty
C.Doubtful
D.Reliable
Step 4: Opposite Words

What is the opposite of 'questionable'?

A.Doubtful
B.Unclear
C.Certain
D.Ambiguous
Step 5: Mastery

Can you think of a real-life situation where something might be considered questionable?

A.The proposal received widespread support from the community.
B.Everyone agreed that the project was a success.
C.The results of the election seemed suspicious to many voters.
D.The school held a fundraiser that was met with enthusiasm.

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