genius
/ˈdʒiːniəs ˈजीनिअस्/ noun 2 [C] a person who has very great and unusual ability, especially in a particular subject असाधारण क्षमता संपन्न व्यक्ति, विशेषतः किसी विषय विशेष में
Ramanujan was a mathematical genius.
⇨ prodigy देखिए।