empirical

From Wiktionary
empirical is on the Academic Word List.

Pronunciation[change]

Adjective[change]

Positive
empirical

Comparative
more empirical

Superlative
most empirical

  1. If something is empirical, it is based on or can be checked by observation or experience.
    Simply because there is no empirical evidence to support this does not mean it's wrong. It simply means we haven't looked hard enough.
    This hypothesis has been challenged on both theoretical and empirical grounds.