proficiency Antonyms

hardships irresolution inexperience ineptness ineptitude ineffectiveness indecision incompetency incompetence uncertainty vacillation confused understanding challenges waste of time clusterfuck cock-up back to the wall cluster-fuck amateurishness incapacity incapability inaptitude doubt dilettantism decline clumsiness childishness blindness artlessness apprehension doubtfulness equivocation inadequacy inability illiteracy ignorance hesitation hesitancy feebleness failure ambiguity