empiricist
/ɛmpɪˈrɪsɪst/Definitions
1. noun
A person who holds that knowledge comes from experience and observation rather than from theoretical reasoning or faith.
“The empiricist approach to science emphasizes experimentation and observation over theoretical models.”
2. adjective
Based on or relying on experience or observation rather than on theory or faith.
“Empiricist methods are often used in the social sciences to gather data and draw conclusions.”