badly
adverb
1 the job had been badly done:
poorly, incompetently, ineptly, inexpertly, inefficiently, imperfectly, deficiently, defectively, unsatisfactorily, inadequately, incorrectly, faultily, shoddily, amateurishly, carelessly, negligently;
awfully, terribly, dreadfully, abominably, atrociously, frightfully, miserably, wretchedly, lamentably, deplorably, dismally, execrably;
informal abysmally, appallingly, crummily, diabolically, pitifully, woefully;
rare egregiously.
▷antonyms well.
4 many of the animals had been badly treated:
cruelly, wickedly, unkindly, harshly, shamefully;
unfairly, unjustly, wrongly, improperly.
5 it's his own fault it turned out badly:
unsuccessfully, unfavorably, adversely, unfortunately, unhappily, unluckily.