as in not to mention
to say nothing of
I never suggested that he was incompetent, still less that he was dishonest
Synonyms & Similar Words
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Example Sentences
Recent Examples of Synonyms for still less
let alone
Conjunction
-
If, on the other hand, cells were much more crowded, molecules would be stuck in place, unable to move much at all, let alone come across their reaction partners.—
Quanta Magazine,
Quanta Magazine,
18 Feb. 2026 -
Or, there are a few things audiences shouldn’t even think about during one, let alone find the time to worry about — especially not if our seemingly devious criminals aren’t worrying about them, either.—
Kate Erbland,
IndieWire,
18 Feb. 2026
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“Still less.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/still%20less. Accessed 21 Feb. 2026.
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