empirical
//ɪmˈpɪrɪkəl//
Adjective
1
Based on observation, experience, or experiment rather than theory or pure logic.
The theory was supported by empirical evidence from years of research.
2
Derived from or guided by practical experience and not theory, especially in science or medicine.
The doctor's treatment approach was empirical, based on years of clinical practice rather than textbook theories.