factualist
/ˈfaktʃʊəlɪst/ /ˈfaktʃʊlɪst/ /ˈfaktʃ(ə)lɪst/noun
A person whose predominant concern is with facts; Philosophy an adherent of factualism.
adjective
Of or relating to factualists or factualism.
Origin
Late 19th century; earliest use found in Appletons' Journal. From factual + -ist, after factualism.