What is the definition of incompetent

Origin late 16th century latin incompetent what is mentally incompetentA person who is unable to perform the required functions of everyday living.The definition of incompetent is someone or something not qualified, inadequate or insufficient for a given purpose.Incompetence definition, the quality or condition of being incompetent;1) referring to a person who is not able to manage his/her affairs due to mental deficiency (lack of i.q., deterioration, illness or psychosis) or sometimes physical disability.A person determined by the courts to be unable to manage his own affairs.

Mental incompetence is the inability of a person to make or carry out important decisions regarding his or her affairs.Incompetent witnesses incompetent adjective not qualified or suited for a purposeWanting in adequate strength, power, capacity, means, qualifications, or the like;Incapable marked by lack of ability, skill, etc law not legally qualified an incompetent witness (of rock strata, folds, etc) yielding readily to pressure so as to undergo structural deformation noun an incompetent personA person with a mental disorder.2 marked by lack of ability, skill, etc.