"Ill-done" is a word used to describe something that was done poorly or executed incorrectly. Synonyms of "ill-done" include "bungled," "botched," "mishandled," "mangled," and "bungled." "Bungled" means that something was done badly or with incompetence, while "botched" describes something that was done poorly or with carelessness. "Mishandled" and "mangled" both suggest that something was done in an incorrect or damaging manner. Lastly, "bungled" suggests that something was done with a lack of skill. Whether you use "ill-done" or one of its synonyms, the message remains the same; it was executed poorly.