If not
If not adverb - Perhaps; indicating possibility of being more remarkable (greater or better or sooner) than.
Show all Definitions
Synonyms for If not
Unless and if not are semantically related In some cases you can use "Unless" instead a conjunction phrase "If not". popular alternative
Unless
If not and unless are semantically related in except that topic. You can use "If not" instead a conjunction "Unless".
Mutual synonyms
Both terms in one sentence
-
Really 700 Years Old: Except for the humans, most of the cast are centuries if not millenias, (Denizens don't exactly age and once you become a Flame haze you're immortal unless killed).
Source: Light Novel / Shakugan no Shana -
Even if not, these will rarely be as heavy, delicate, or cumbersome in fiction as they are in real life, unless it's explicitly mentioned as a Take That to royal life.
Source: Requisite Royal Regalia - Now, unless the show is a Sugar Bowl (or, for a particularly unlucky woobie, a Sugar Bowl except for this one guy's bad life), and sometimes even then, the audience will feel sorry for most if not all of the characters at one point or another.
Source: Analysis / The Woobie
Cite this Source
Unless and If not. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/if_not/unless
If not & Unless. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/if_not/unless>.
Unless or If not. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/if_not/unless.
Google Ngram Viewer shows how "if not" and "unless" have occurred on timeline