Inadequate
Inadequate adjective - Not coming up to an expected measure or meeting a particular need.
Questionable and inadequate are semantically related. In some cases you can use "Questionable" instead an adjective "Inadequate".
Nearby Words: inadequacy, inadequately
Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Inadequate and questionable are semantically related. Sometimes you can use "Inadequate" instead an adjective "Questionable".
Both words in one sentence
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Inadequate Inheritor: Chief Wournos is trying various ways to prepare Nathan to take over for him and to ready him for dealing with the "Troubles" on his own... with questionable success.
Source: Series / Haven
Cite this Source
Questionable and Inadequate. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/inadequate/questionable
Inadequate & Questionable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/inadequate/questionable>.
Questionable or Inadequate. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/inadequate/questionable.
Google Ngram Viewer shows how "inadequate" and "questionable" have occurred on timeline