Synonyms of negligently

2 Syllables
feebly, poorly, badly
3 Syllables
faultily, ineptly, sloppily
4 Syllables
blunderingly, erroneously, imperfectly, maladroitly, incautiously, unskillfully, neglectfully, carelessly
5 Syllables
inadvertently, abominably, irresponsibly, indifferently, unconcernedly
6 Syllables
inadequately, inattentively