a sudden reversal of fortune or change in circumstances, especially in reference to character in a literary work

पटर्न परिवर्तन

English Usage: The protagonist experienced a peripeteia that completely changed the course of the story.

Hindi Usage: मुख्य पात्र ने एक ऐसा पटर्न परिवर्तन अनुभव किया जिसने कहानी की दिशा को पूरी तरह बदल दिया।