| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | exploratory |
| Synonyms: | beginning, developmental, empirical, experiential, first stage, laboratory, momentary, on approval, pilot, preliminary, preparatory, primary, probationary, provisional, speculative, temporary, tentative, test, trial, trial-and-error, unconcluded, under probation, unproved |
| Antonyms: | proven, tested, tried |