Complex
Uncertain
Uncertain adjective - Likely to change frequently, suddenly, or unexpectedly.
Complex and uncertain are semantically related. Sometimes you can use "Complex" instead an adjective "Uncertain".
Nearby Words: uncertainty, uncertainly
Mutual synonyms
Both words in one sentence
- Its sail was bigger and more complex however: it had a more rounded shape and its spines had regularly-placed tubercles for uncertain purpose.
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Naturally, the PCs stumble across an Old Reckoning antimatter bomb that actually could destroy the entire Complex, and are told in no uncertain terms to keep it the hell away from him (among others).
Source: General Ripper
Cite this Source
Uncertain and Complex. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/complex/uncertain
Complex & Uncertain. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/complex/uncertain>.
Uncertain or Complex. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/complex/uncertain.
Google Ngram Viewer shows how "complex" and "uncertain" have occurred on timeline