weaken - definition and synonyms


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present tense
present participleweakening
past tenseweakened
past participleweakened
  1. 1
    [intransitive/transitive] to make someone physically less strong and healthy, or to become less strong and healthy

    Stress can weaken the immune system.

    She began to weaken after running for 8 miles.

    1. a.
      to make a structure more likely to break, or to become more likely to break

      Many buildings had already been weakened by last year’s storms.

  2. 2
    [intransitive/transitive] to make someone or something less powerful or important, or to become less powerful or important

    A peace deal between Israel and Lebanon would have weakened Syria’s influence in the region.

     Synonyms and related words
  3. 3
    [transitive] to make someone less determined or less certain

    If your facts are wrong, that’s going to weaken your case.

    weaken someone’s resolve/morale/resistance/spirit:

    No amount of violence will weaken our resolve.

    1. a.
      [intransitive] if someone weakens about an opinion or a decision, they become less certain about it

      In the end I weakened and agreed to go.

  4. 4
    [intransitive] if prices weaken, they fall