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let alone

conjunction

Definition of let alone

  1. :  to say nothing of :  not to mention —used especially to emphasize the improbability of a contrasting example he would never walk again let alone play golf — Sports Illus. how many ever see an Ambassador or Minister, let alone a President — Robert Lacville

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From the M-W Editors

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Examples of let alone in a Sentence

  1. I don't have enough money for a new car, let alone a luxury sedan.

First Known Use of let alone

1765

let alone Synonyms

Synonyms
much less, never mind, still less, not to mention

Learn More about let alone

  1. Thesaurus: All synonyms and antonyms for let alone

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let alone

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Words at Play

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We're Down With You Being—or Your Being?—a Square

It's about (you? your?) having your say.

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Examples: let alone in a Sentence