proficient, expert, skilled, practiced, skillful, good, genius, virtuoso, wiz, skilful, more...

inept, clumsy, unskilled, awkward

novice, apprentice, journeyman, master, more...

great, least, such, true, perfect, more, tantric, taoist, spiritual, thorough, young

good at,   cleverly skillful,   very skilled,   most skillful,   proficient in,   very good at,   skilled at,   quite proficient at,   skilled in,   practiced ease