incompetent - definition and synonyms

adjective 

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/ɪnˈkɒmpɪt(ə)nt/
  1. lacking the ability or skills to do something

    the worst and most incompetent government in living memory

    completely/hopelessly/unbelievably incompetent:

    I am completely incompetent; can you show me again?

    incompetent at:

    The soldiers had four camels but were hopelessly incompetent at loading them.

derived word

incompetently

adverb