incompetent person

Definitions of incompetent person
  1. noun
    someone who is not competent to take effective action
    synonyms: incompetent
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    blunderer, botcher, bumbler, bungler, butcher, fumbler, sad sack, stumbler
    someone who makes mistakes because of incompetence
    an incompetent person; usually used in negative constructions
    type of:
    unskilled person
    a person who lacks technical training
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