Not having been dealt with or answered satisfactorily.

ऐसा जो संतोषजनक रूप से निपटाया या उत्तर नहीं दिया गया है।

English Usage: He had unresolved feelings about his past.

Hindi Usage: उसके अतीत के बारे में अनसुलझे भावनाएँ थीं।

A situation that has not been resolved or settled.

एक ऐसा स्थिति जो हल नहीं हुई है।

English Usage: The conflict remains unresolved despite several negotiations.

Hindi Usage: कई बातचीत के बावजूद यह संघर्ष अनसुलझा है।