Marked by or resulting from carelessness; negligent:
Not done on purpose
Having no particular purpose, organization, or structure; random.
Not intended; unintentional:
Find another word for unintended. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for unintended, like: inadvertent, unintentional, unplanned, planned, undesigned, undevised, unmeant, unwitting and intended.