competent -
properly or sufficiently qualified or capable or efficient; "a competent typist"
incompetent not qualified or suited for a purpose; "an incompetent secret service"; "the filming was hopeless incompetent"
capable (usually followed by `of') having capacity or ability; "capable of winning"; "capable of hard work"; "capable of walking on two feet"
efficient being effective without wasting time or effort or expense; "an efficient production manager"; "efficient engines save gas"
qualified meeting the proper standards and requirements and training for an office or position or task; "many qualified applicants for the job"
skilled having or showing or requiring special skill; "only the most skilled gymnasts make an Olympic team"; "a skilled surgeon has many years of training and experience"; "a skilled reconstruction of her damaged elbow"; "a skilled trade"
able,
capable (usually followed by `to') having the necessary means or skill or know-how or authority to do something; "able to swim"; "she was able to program her computer"; "we were at last able to buy a car"; "able to get a grant for the project"
efficient,
effective being effective without wasting time or effort or expense; "an efficient production manager"; "efficient engines save gas"
competent -
adequate for the purpose; "a competent performance"
equal,
adequate having the same quantity, value, or measure as another; "on equal terms"; "all men are equal before the law"
competent -
legally qualified or sufficient; "a competent court"; "competent testimony"