Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Undefined and questionable are semantically related. in doubtful topic. In some cases you can use "Undefined" instead an adjective "Questionable".
Undefined
Undefined adjective - Not seen or understood clearly.
Questionable and undefined are semantically related. Sometimes you can use "Questionable" instead an adjective "Undefined".
Mutual synonyms
Related pairs
- dubious and questionable
- dubious and undefined
- unsettled and questionable
- unsettled and undefined
- obscure and questionable
- obscure and undefined
- unclear and questionable
- unclear and undefined
- ambiguous and questionable
- ambiguous and undefined
- doubtful and questionable
- doubtful and undefined
- weak and questionable
- weak and undefined
Cite this Source
Undefined and Questionable. (2016). Retrieved 2026, August 13, from https://thesaurus.plus/related/questionable/undefined
Questionable & Undefined. N.p., 2016. Web. 13 Aug. 2026. <https://thesaurus.plus/related/questionable/undefined>.
Undefined or Questionable. 2016. Accessed August 13, 2026. https://thesaurus.plus/related/questionable/undefined.
Google Ngram Viewer shows how "questionable" and "undefined" have occurred on timeline