If and Not but

If

If noun - Something taken as being true or factual and used as a starting point for a course of action or reasoning.
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Synonyms for If

Not but and if are semantically related. In some cases you can replace phrase "Not but" with "If", this terms are similar.

Not but

Definitions of If not found.

If and not but are semantically related. You can use "If" instead a conjunction phrase "Not but".
Cite this Source
Not but and If. (2016). Retrieved 2026, August 03, from https://thesaurus.plus/related/if/not_but
If & Not but. N.p., 2016. Web. 03 Aug. 2026. <https://thesaurus.plus/related/if/not_but>.
Not but or If. 2016. Accessed August 03, 2026. https://thesaurus.plus/related/if/not_but.
Google Ngram Viewer shows how "if" and "not but" have occurred on timeline