Deficient and Questionable

Related words

Deficient adjective - Lacking some necessary part.

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Questionable and deficient are semantically related. In some cases you can use "Questionable" instead an adjective "Deficient".

Nearby Words: deficiency, deficit, deficiently

Questionable adjective - Giving good reason for being doubted, questioned, or challenged.

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Deficient and questionable are semantically related. Sometimes you can use "Deficient" instead an adjective "Questionable".

Cite this Source

Questionable and Deficient. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/deficient/questionable

Deficient & Questionable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/deficient/questionable>.

Questionable or Deficient. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/deficient/questionable.

Google Ngram Viewer shows how "deficient" and "questionable" have occurred on timeline