Uncertain and Unclear

Uncertain

Uncertain adjective - Likely to change frequently, suddenly, or unexpectedly.

Unclear is a synonym for uncertain in certain topic. In some cases you can use "Unclear" instead an adjective "Uncertain", when it comes to topics like ambiguous, doubtful, undetermined, unsure. popular alternative

Nearby Words: uncertainty, uncertainly

Unclear

Unclear adjective - Not expressed in precise terms.
Usage example: their suggestion for correcting the problem is a bit unclear

Uncertain is a synonym for unclear in certain topic. You can use "Uncertain" instead an adjective "Unclear", if it concerns topics such as ambiguous, undetermined, enigmatic, not clear. popular alternative

Nearby Word: uncleared
Cite this Source
Unclear and Uncertain. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/uncertain/unclear
Uncertain & Unclear. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/uncertain/unclear>.
Unclear or Uncertain. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/uncertain/unclear.
Google Ngram Viewer shows how "uncertain" and "unclear" have occurred on timeline