Doth duty, an archaic phrase meaning "does the right thing," implies a sense of obligation or responsibility. Some antonyms for this phrase could include "neglects responsibility," "shirks duty," "ignores obligations," or "abdicates responsibility." These antonyms convey a lack of responsibility or commitment towards a task or duty. Alternatively, antonyms could focus on the opposite action of doing what is right, such as "disobeys orders," "violates protocol," or "acts recklessly." Overall, antonyms for doth duty indicate a failure to fulfill a moral or societal obligation, often resulting in negative consequences.