Doth well enough can be expressed as adequate or satisfactory. However, antonyms for this phrase could signify something that is below average, insufficient, or unsatisfactory. Some antonyms for doth well enough could be "poorly," "badly," "subpar," "inadequate," "deficient," "unsatisfactory," "inferior," or "unsuitable." Using these antonyms convey a lower level of performance, quality, or standard. It could also indicate that an action or task has not been executed proficiently. Thus, using antonyms for doth well enough can help express a negative sentiment, and the level of satisfaction towards a particular action or task.