much less

much less

1. (idiomatic) Let alone; to say nothing of.
   • 1927-29, M.K. Gandhi, The Story of My Experiments with Truth, translated 1940 by Mahadev Desai, Part I, Chapter xxi:

     Of the thing that sustains him through trials man has no inkling, much less knowledge, at the time.

• let alone
• not to mention

• “much (or still) less”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.