butter-fingered

ill-equipped impotent inadequate incapable ineligible unable unprepared unqualified useless

blundering bungling debilitated disqualified incapacitated unfitted

amateur awkward bush league clumsy feeble heavy-handed incompetent ineffective inefficient inept inexperienced inexpert maladjusted maladroit no good not cut out for not equal to not up to unapt unhandy unpracticed unproficient unskilled unskillful untrained weak

appropriate fit ready