Definition of let someone down in English:

let someone down

phrasal verb

  • 1Fail to support or help someone as they had hoped.

    ‘if I let him down now, I knew he'd never trust me again’
    • ‘Girlfriends support you when the man in your life lets you down.’
    • ‘We feel frustrated and completely let down by this Government, and that is why we are planning this rally.’
    • ‘Ken had been her best friend and she'd let him down.’
    • ‘She did absolutely nothing to assist me and failed to keep appointments, letting down the local community.’
    • ‘I had a daughter to support, and I couldn't let her down.’
    • ‘Half of 14-year-olds can't write or add up properly and the schools inspectorate said failing schools were letting down children of the poor.’
    • ‘Any lecturer whose courses fail to attract adequate numbers of students is made to feel not only that he is in some way deficient but also that he is letting down his colleagues.’
    • ‘I will not fail you, I will not disappoint you and I will not let you down.’
    • ‘Is someone letting you down or failing to get a job done on time?’
    • ‘From a personal standpoint, I wouldn't mind down-sizing, but I worry about the vendors, the clients, and especially the employees I'd be letting down.’
    fail, fail to support, fall short of expectation
    View synonyms
    1. 1.1let someone/something down Have a detrimental effect on the overall quality or success of someone or something.
      ‘the whole machine is let down by the tacky keyboard’
      • ‘The quality of the competition apart, what let things down was the abysmal and partisan television coverage.’
      • ‘The vegetable samosas were pronounced okay, with a greasy exterior letting down the contents.’
      • ‘It was a disappointing finish and we were let down by lapses in concentration’
      • ‘A bit young and reckless, his positional play and defensive qualities occasionally let him down at the very top level.’
      • ‘But what really lets this collection down is not the quality of the songs - everything about their tunes is well considered and slickly executed - but the production.’
      • ‘We've been working on the areas that have been letting us down and I'm hoping that as the weeks go by we get better and better.’
      • ‘An excellent cast is let down by an uninspired script and a collection of unimpressive bad guys.’
      • ‘However, smaller airports were let down by the quality of their facilities, such as shops and food outlets.’
      • ‘The north west has a wonderful range of historic buildings, but so often they are let down by the poor quality of the public spaces around them.’
      • ‘The sound quality let them down massively, but they still managed to do well at warming up the audience.’