Undecide
Unknown
Unknown adjective - Happening or existing without one's knowledge.
Undecide and unknown are semantically related. Sometimes you can replace term "Undecide" with "Unknown", this adjectives are similar.
Nearby Words: unknowable, unknowing
Mutual synonyms
Cite this Source
Unknown and Undecide. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/undecide/unknown
Undecide & Unknown. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/undecide/unknown>.
Unknown or Undecide. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/undecide/unknown.
Google Ngram Viewer shows how "undecide" and "unknown" have occurred on timeline