All competent antonyms

adj competent

• incompetent — not competent; lacking qualification or ability; incapable: an incompetent candidate.
• unable — lacking the necessary power, competence, etc., to accomplish some specified act: He was unable to swim.
• unskilled — of or relating to workers who lack technical training or skill.
• impotent — not potent; lacking power or ability.
• incapable — not capable.
• unsuitable — not suitable; inappropriate; unfitting; unbecoming.
• insufficient — not sufficient; lacking in what is necessary or required: an insufficient answer.
• inadequate — not adequate or sufficient; inept or unsuitable.
• inefficient — not efficient; unable to effect or achieve the desired result with reasonable economy of means.
• inept — without skill or aptitude for a particular task or assignment; maladroit: He is inept at mechanical tasks. She is inept at dealing with people.
• unqualified — not qualified; not fit; lacking requisite qualifications: unqualified for the job.