For certain
For certain adverb - Definitely or positively (`sure' is sometimes used informally for `surely').
Most likely and for certain are semantically related. In some cases you can use "Most likely" instead an adverb phrase "For certain".
Most likely
For certain and most likely are semantically related. Sometimes you can use "For certain" instead an adverb phrase "Most likely".
Mutual synonyms
Both terms in one sentence
- Due to the massive amounts of mindfuckery involved, it's hard to say for certain, but this seems the most likely scenario from what information we're given.
Source: Apocalypse How / Class X-4
Cite this Source
Most likely and For certain. (2016). Retrieved 2026, August 15, from https://thesaurus.plus/related/for_certain/most_likely
For certain & Most likely. N.p., 2016. Web. 15 Aug. 2026. <https://thesaurus.plus/related/for_certain/most_likely>.
Most likely or For certain. 2016. Accessed August 15, 2026. https://thesaurus.plus/related/for_certain/most_likely.
Google Ngram Viewer shows how "for certain" and "most likely" have occurred on timeline