A final demand or statement of terms, the rejection of which will result in retaliation or breakdown in relations.

अंतिम प्रस्ताव

English Usage: The country issued an ultimatum before taking military action.

Hindi Usage: देश ने मिलिट्री कार्रवाई से पहले एक अंतिम प्रस्ताव जारी किया।