Man's first attempts at flying were purely experimental.
2 empirical, experiential:
She has profound experimental knowledge of what is involved.
Advanced English Dictionary
+adjective 1 based on new ideas, forms or methods that are used to find out what effect they have: experimental teaching methods + experimental theatre / art / music + The equipment is still at the experimental stage. + Doctors stress that this kind of treatment is still experimental. 2 connected with scientific experiments: experimental conditions / data / evidence experimentally adverb: This theory can be confirmed experimentally. + The new drug is being used experimentally on some patients. + He moved his shoulder experimentally to see if it still hurt.
Random quote: I always wanted to be somebody, but I should have been more specific.: Lily Tomlin