|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|a chattering or flighty, light-headed person.|
|1.||not possessing the necessary ability, skill, etc to do or carry out a task; incapable|
|2.||marked by lack of ability, skill, etc|
|3.||law not legally qualified: an incompetent witness|
|4.||(of rock strata, folds, etc) yielding readily to pressure so as to undergo structural deformation|
|5.||an incompetent person|
incompetent in·com·pe·tent (ĭn-kŏm'pĭ-tənt)
Inadequate for or unsuited to a particular purpose or application.
Incapable of proper functioning.
Not qualified in legal terms.