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
-
However, making it to Daytona, let alone winning a championship, may remain well out of Courteney’s grasp.—
Aramide Tinubu,
Variety,
7 Nov. 2025 -
Nothing indicated that the removal credits Microsoft was snapping up were enough to cancel out these emissions, let alone surmount them.—
Literary Hub,
Literary Hub,
5 Nov. 2025
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“Still less.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/still%20less. Accessed 10 Nov. 2025.
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