| Main Entry: | |
| Part of Speech: | noun |
| Definition: | examiner |
| Synonyms: | assessor, auditor, checker, controller, detective, investigator, monitor, overseer, police officer, private eye, reviewer, scrutinizer, sleuth, tester |
| Main Entry: | researcher |
| Part of Speech: | noun |
| Definition: | research worker |
| Synonyms: | analyst, analyzer, clinician, experimenter, investigator, scientist, tester |
| Main Entry: | scientist |
| Part of Speech: | noun |
| Definition: | researcher |
| Synonyms: | analyst, chemist, examiner, expert, lab technician, physicist, prober, tester |
| Main Entry: | test pilot |
| Part of Speech: | noun |
| Definition: | aircraft tester |
| Synonyms: | analyst, test driver, tester, tryer-out |
| Main Entry: | inquirer |
| Part of Speech: | noun |
| Definition: | questioner |
| Synonyms: | Sherlock Holmes, agent, analyst, attorney, auditor, detective, examiner, gumshoe, hound, inquisitor, inspector, investigator, plainclothes officer, police, private detective, private eye, prober, prosecutor, querier, quester, researcher, reviewer, sleuth, snooper, spy, tester, undercover cop |
| Main Entry: | experimental |
| 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 |
| Main Entry: | preliminary |
| Part of Speech: | adjective |
| Definition: | introductory, initial |
| Synonyms: | basic, elemental, elementary, exploratory, first, fundamental, inductive, initiatory, opening, pilot, preceding, precursory, prefatory, preparatory, preparing, primal, primary, prior, qualifying, readying, test, trial |
| Antonyms: | closing, concluding, final |
| Main Entry: | provisional |
| Part of Speech: | adjective |
| Definition: | contingent, tentative |
| Synonyms: | conditional, dependent, ephemeral, experimental, interim, limited, makeshift, passing, pro tem, provisionary, provisory, qualified, rough-and-ready, stopgap, temporary, test, transient, transitional |
| Antonyms: | certain, definite, permanent |
| Main Entry: | tentative |
| Part of Speech: | adjective |
| Definition: | conditional, experimental |
| Synonyms: | acting, ad interim, conjectural, contingent, dependent, iffy, indefinite, makeshift, not final, not settled, on trial, open for consideration, probationary, provisional, provisionary, provisory, speculative, subject to change, temporary, test, trial, unconfirmed, undecided, unsettled |
| Antonyms: | certain, decisive, definite, final, sure |