English Reference
Idiom idiom

let down


To disappoint; to betray or fail somebody.

Meaning adapted from Wiktionary, available under CC BY-SA 4.0.


SIMPLE

I do not want to let you down.

CONTEXTUAL

He felt terrible because he had to let his team down by missing the final game.

COMPLEX

Despite his promise to support the project until the end, he ultimately let his colleagues down when he resigned without warning.


Related idioms8entries
  1. 01

    buy to let

    To purchase a property as in investment, and to let it out for rental instead of living in it

  2. 02

    don't let the door hit you on the way out

    Used as a command to leave in haste, or to indicate that one is glad, or at least unmoved, to see the addressed person leaving.

  3. 03

    let a sleeping dog lie

    Alternative form of let sleeping dogs lie.

  4. 04

    let bygones be bygones

    To disregard or ignore a past difficulty in a relationship or an offence (when dealing with another individual).

  5. 05

    let crazy stick its dick in you

    To have sex with a male deemed insane.

  6. 06

    let drive

    To aim a blow; to strike with force; to attack; to shoot (an arrow or firearm).

  7. 07

    let fly

    To strike or release a projectile with great force.

  8. 08

    let go and let God

    To consciously surrender one's free will to the will of God.

Last updated August 10, 2026