theorist
//ˈθɪərɪst//
Noun
theoristSingular
theoristsPlural
1
A person who develops or studies the theoretical framework of a subject, especially in academic or intellectual fields.
She is a well-known political theorist who has written several influential books.
2
Someone who forms theories or speculates about abstract ideas rather than focusing on practical applications.
He is more of a theorist than a practitioner, preferring to develop ideas rather than implement them.