Probably and Unlikely

Opposite meaning words

Probably adverb - By reasonable assumption.

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Unlikely is an antonym for probably in likely to happen topic.

Nearby Words: probable, probability

Unlikely adjective - Not likely to be true or to occur.

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Probably is an antonym for unlikely in topics: likely, not probable.

Nearby Word: unlikeliness

Lampshaded by Sayid asking Jack if he's ever seen such a convenient case of amnesia in his medical practice, and Jack agreeing that it's unlikely and probably a sign of something more sinister.

Source: Easy Amnesia
The album supposedly sold 200,000 copies but since the album was released on a very tiny label, didn't chart, didn't get any radio play and fell into obscurity shortly after release, the prospect of the album selling 200,000 seems highly unlikely and probably sold only a few hundred copies at best.

Source: Horrible / Music
Assassins's Creed II probably made the name "Ezio" unlikely to be used for a videogame character ever again.

Source: One Mario Limit

Cite this Source

Unlikely and Probably. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/probably/unlikely

Probably & Unlikely. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/probably/unlikely>.

Unlikely or Probably. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/probably/unlikely.

Google Ngram Viewer shows how "probably" and "unlikely" have occurred on timeline