Synonyms of badly in English:

badly


See definition of badly

adverb

1‘the job had been badly done’

SYNONYMS
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

2‘try not to think badly of me’

SYNONYMS
unfavourably, ill, critically, with disapproval, with disfavour

3‘Anna knew she had been behaving badly’

SYNONYMS
reprehensibly, naughtily, mischievously

4‘many of the animals had been badly treated’

SYNONYMS
cruelly, wickedly, unkindly, harshly, shamefully
unfairly, unjustly, wrongly, improperly

5‘it's his own fault it turned out badly’

SYNONYMS
unsuccessfully, unfavourably, adversely, unfortunately, unhappily, unluckily

6‘some of the victims are badly hurt’

SYNONYMS
severely, seriously, gravely, greatly, grievously, acutely, critically, dangerously
ANTONYMS

slightly

7‘the house is badly in need of redecoration’

SYNONYMS
very much, greatly, intensely, desperately, exceedingly, painfully, sorely
informal seriously