不善

bad / ill / not good at / not to be pooh-poohed / quite impressive

no; not so / (bound form) not; un-

good (virtuous) / benevolent / well-disposed / good at sth / to improve or perfect

He who comes is surely ill-intentioned, no-one well-meaning will come (idiom). / Be careful not to trust foreigners. / Beware of Greeks bearing gifts!