Not sure
Questionable and not sure are semantically related. In some cases you can use "Questionable" instead an adverb phrase "Not sure".
Questionable
Questionable adjective - Giving good reason for being doubted, questioned, or challenged.
Not sure and questionable are semantically related. Sometimes you can use "Not sure" instead an adverb "Questionable".
Mutual synonyms
Related pairs
- open and not sure
- open and questionable
- dubious and not sure
- dubious and questionable
- unsettled and not sure
- unsettled and questionable
- unclear and not sure
- unclear and questionable
- ambiguous and not sure
- ambiguous and questionable
- doubtful and not sure
- doubtful and questionable
- undetermined and not sure
- undetermined and questionable
Both terms in one sentence
- The description is okay, but the title is... highly questionable, and I'm not sure if there's more than one or two properly-written examples on the entire page.
Source: Needs Wiki Magic Love
Cite this Source
Questionable and Not sure. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/not_sure/questionable
Not sure & Questionable. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/not_sure/questionable>.
Questionable or Not sure. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/not_sure/questionable.
Google Ngram Viewer shows how "not sure" and "questionable" have occurred on timeline