Unresolved refers to something that is yet to be resolved or remains uncertain. The opposite of unresolved is 'resolved', which means that the problem has been effectively dealt with, and a solution has been found. Other antonyms for unresolved include 'settled', 'concluded', 'resolved', 'clear', 'decisive', 'definite', 'determined', 'unambiguous' and 'settled.' When a matter is resolved, it is no longer ambiguous, perplexing or troubling; it is settled and clear. In contrast, when something remains unresolved, it can lead to anxiety, confusion and frustration. It is important to address unresolved issues to achieve closure and move forward effectively.