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let alone

let alone

21 3.0
To show that something is even less likely than what was just mentioned
  • idiom
translation icon : y mucho menos
  • He can hardly afford a bicycle, let alone a car.

sanctions US soft power, let alone US hard power.

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Examples

  • Yet, we have no effective, let alone comprehensive, legal framework to prevent or respond to these attacks.

    Academic text (2016)
  • Unconstitutional does not begin to describe this brazen corruption, let alone the national security threats.

  • It's no longer about truth or even a good faith attempt to listen, let alone truly understand.

  • And there are very, very few proposals, let alone practical solutions for how we get there.

  • Too few men turn to their friends or partners, let alone go to a GP.

    Academic text (2010)
  • Gaining access to dementia services is difficult enough for paid care staff, let alone family carers.

    Academic text (2010)
  • Many of them don't even know what their pension system consists of, let alone what obligations they have.

  • They don't have the capacity even to move themselves, let alone to decide for themselves.

  • When someone hates you, they don't hear what you're saying, let alone want to work with you on an issue.

  • Now the Leahys say they can't pay the rent, let alone repurchase the place.

    Academic text (2007)

Synonyms

not to mention
vslet alone
465 3.7

Shows that something is even more important than what was just said

stresses that the added point is even less likely rather than more obvious
much less
vslet alone
77 3.9

Shows that something is even less likely or possible than what came before

emphasizes something is even less likely than what was already said

How Emphatic

much less
77 3.9
let alone
21 3.0
not to mention
465 3.7

Surface Forms

let alone main

Morphology

let + alone

The concessive phrase 'let alone' does not compose straightforwardly from 'let' (allow) and 'alone' (by oneself); its function is idiomatic, marking emphasis/contrast meaning 'much less' or 'not to mention'. A B1 learner who knows the individual words would be unlikely to derive this discourse-level function from the literal meanings, so it is not transparently predictable.

Etymology

Let alone gives a quick contrast: if someone cannot do an easier thing, they will almost never do a harder one. Because let can mean 'allow' and alone means 'by itself', the expression points out the second thing is 'even less likely'.