polymath; person of extensive learning; well-read person
Refers to someone with deep, broad knowledge across many fields. Often used in academic or intellectual contexts.
He is known as a polymath, with broad knowledge ranging from science to literature.
学者 is a general 'scholar', often specialized in one field; 博学者 emphasizes breadth across multiple disciplines.
Compound of 博 (broad, extensive) + 学 (learning) + 者 (person). The term follows a standard Sino-Japanese pattern for describing a person with a certain quality.