A person who begins to learn or study late in life.

जीवन में देर से सीखने वाला व्यक्ति

English Usage: My grandfather was an opsimath, deciding to pursue his education in his seventies.

Hindi Usage: मेरे दादा एक ऑप्सीमैथ थे, जिन्होंने अपने सत्तरवें वर्ष में शिक्षा प्राप्त करने का निर्णय लिया।