If not
If not adverb - Perhaps; indicating possibility of being more remarkable (greater or better or sooner) than.
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Synonyms for If not
Unless that and if not are semantically related. In some cases you can replace phrase "Unless that" with "If not", this phrases are similar.
Unless that
If not and unless that are semantically related. Sometimes you can replace phrase "If not" with "Unless that", this phrases are similar.
Mutual synonyms
Cite this Source
Unless that and If not. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/if_not/unless_that
If not & Unless that. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/if_not/unless_that>.
Unless that or If not. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/if_not/unless_that.
Google Ngram Viewer shows how "if not" and "unless that" have occurred on timeline