Certain
Certain adjective - Not capable of being challenged or proved wrong.
Usage example: up to this point there's been no certain evidence that a crime has been committed
Inconclusive is an antonym for certain.
Inconclusive
Inconclusive adjective - Not conclusive; not putting an end to doubt or question.
Nearby Word: inconclusively
Both words in one sentence
- She started to pick off enemy units and could probably have wiped out the entire Britannian army, given enough time, but the battle actually ended in a more inconclusive fashion for both sides thanks to the unexpected use of a certain weapon.
Source: Pendulum War -
The new Pope decided the ordeal (minus ripping roofs off of buildings) was a good way of making sure the Cardinals came to a choice sooner rather than later, and codified the conclave—and enforced fast after a certain number of inconclusive votes—in a Papal bull in force to this day.
Source: Useful Notes / The Pope
Cite this Source
Inconclusive and Certain. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/certain/inconclusive
Certain & Inconclusive. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/certain/inconclusive>.
Inconclusive or Certain. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/certain/inconclusive.
Google Ngram Viewer shows how "certain" and "inconclusive" have occurred on timeline