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
-
The four-team Playoff era wouldn’t have included teams ranked as low as Indiana’s first two opponents — let alone its national title opponent Miami — but the top seed’s dominance thus far has been astounding.—
The Athletic College Football,
New York Times,
10 Jan. 2026 -
Both sides of the river were identical—banks of dense forest with no sign of habitation, let alone border control.—
Stanley Stewart,
Travel + Leisure,
10 Jan. 2026
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“Still less.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/still%20less. Accessed 11 Jan. 2026.
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