Uncertain
Uncertain adjective - Likely to change frequently, suddenly, or unexpectedly.
Unknown and uncertain are semantically related. In some cases you can use "Unknown" instead an adjective "Uncertain".
Nearby Words: uncertainty, uncertainly
Unknown
Unknown adjective - Happening or existing without one's knowledge.
Uncertain and unknown are semantically related. Sometimes you can use "Uncertain" instead an adjective "Unknown".
Nearby Words: unknowable, unknowing
Mutual synonyms
Related pairs
- unsettled and uncertain
- unsettled and unknown
- obscure and uncertain
- obscure and unknown
- unclear and uncertain
- unclear and unknown
- unfixed and uncertain
- unfixed and unknown
- undetermined and uncertain
- undetermined and unknown
- vague and uncertain
- vague and unknown
- undecided and uncertain
- undecided and unknown
Cite this Source
Unknown and Uncertain. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/uncertain/unknown
Uncertain & Unknown. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/uncertain/unknown>.
Unknown or Uncertain. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/uncertain/unknown.
Google Ngram Viewer shows how "uncertain" and "unknown" have occurred on timeline