Unresolved means still not settled. The argument that never got finished, the question the meeting ran out of time for.
You meet it wherever something has been left hanging: an unresolved dispute, an unresolved case, unresolved feelings about someone you used to love. In music an unresolved chord is one that never returns home, and the ear keeps waiting for it. Technical fields borrow it as well — an unresolved bug, an unresolved reference in code. The thread running through all of them is the same: the matter is open, and everybody knows it.
1adjectiveunresolvedStill not settled, answered or dealt with.
“The dispute remains unresolved after three years.”
synonyms: outstanding, open, unsettled
From un- + resolved.
Etymology from Wiktionary, CC BY-SA