badlyPronunciation: /ˈbadli/Translate badly | into French | into German | into Italian | into Spanish Definition of badly adverb (worse /wəːs/, worst /wəːst/) 1in an unsatisfactory, inadequate, or unsuccessful way:England have played badly this year the war was going badly in a critical or unfavourable way:try not to think badly of me in an unacceptable or unpleasant way:she realized she was behaving rather badly 2used to emphasize the seriousness of an unpleasant event or action:the building was badly damaged by fire very much or intensely:I wanted a baby so badly 3in a guilty or regretful way:I felt badly about my unfriendlinessPhrases badly off at a disadvantage, especially by being poor: they are not as badly off as they try to make out I’m not badly off—I have some money from my motherbadly in other Oxford dictionaries Definition of badly in the US English dictionary