US: /ˈkwɛstʃənəbəɫ/
UK: /kwˈɛst‍ʃənəbə‍l/

English Vietnamese dictionary

questionable /'kwestʃənəbl/
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Advanced English dictionary

+ adjective
1 that you have doubts about because you think it is not accurate or correct: The conclusions that they come to are highly questionable. + It is questionable whether this is a good way of solving the problem.
2 likely to be dishonest or morally wrong: Her motives for helping are questionable.
questionably adverb

Thesaurus dictionary

doubtful, dubious, debatable, moot, disputable, borderline, suspect, suspicious, shady; open to question, in question, in dispute, problematic(al), uncertain, arguable, unsure, unreliable, ambiguous:
The evidence shows that the defendant engaged in questionable banking practices while a director of Offshore Ltd. The advantages of quick divorce are questionable.

Collocation dictionary


be | become | remain


highly, very
Their motives for undertaking this study are highly questionable.
| rather, somewhat

Concise English dictionary

+subject to question
+able to be refuted