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undermine - definition and synonyms


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verb [transitive] undermine pronunciation in American English /ˌʌndərˈmaɪn/
Word Forms
present tense
present participleundermining
past tenseundermined
past participleundermined
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  1. 1
    to make something or someone become gradually less effective, confident, or successful
    Britain was accused of undermining international efforts to reduce pollution.
    Their trading position has been seriously undermined by the minister’s remarks.
    1. a.
      to deliberately say or do things that make someone appear less impressive or less important
      They had spoken secretly to reporters in an effort to undermine the leadership.


a meal served in the evening which consists of foods traditionally eaten at breakfast

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