the act of destroying something completely

पूर्णतः नष्ट करने की क्रिया

English Usage: The obliteration of the ancient ruins was a tragic loss for historians.

Hindi Usage: प्राचीन खंडहरों का पूर्णतः नष्ट होना इतिहासकारों के लिए एक दुखद हानि थी।