inept
ih-NEPTadjMeaning clumsy; lacking the skill to do something well
Memory hook IN-APT: NOT APT at all. Felix is not apt at juggling: every ball he tosses ends up on the grass. He is inept.
The inept referee kept losing track of the score.
In context Although Marcus was a gifted singer, he was inept at dancing; he stepped on his partner’s feet twice in the first minute.
Similar clumsy, unskilled, incompetent, bungling
Opposite skillful, adept, competent
From Latin ineptus, “unsuited, foolish”: in- (not) + aptus (fit, apt).