experimental
1. [ adjective ] relating to or based on experiment
Examples:

"experimental physics"

Related terms: experiment
2. [ adjective ] relying on observation or experiment
Synonyms: observational data-based
Examples:

"experimental results that supported the hypothesis"

Related terms: empirical
3. [ adjective ] of the nature of or undergoing an experiment
Synonyms: pilot test trial model
Examples:

"an experimental drug" "a pilot project" "a test run" "a trial separation"

Related terms: empirical
Similar spelling:   experimentally
  experiment
  experimentalism
  experimenter
  experiential
  experimentation
  ex-president
  exuberant
  experience
  experienced