Exact Match:
- probationary
- under terms not final or fully worked out or agreed upon; "probationary employees"; "a provisional government"; "just a tentative schedule"
Synonyms:
- cut-and-try,
- empirical,
- experimental,
- heuristic,
- hit-or-miss,
- on probation,
- pilot,
- probational,
- probative,
- probatory,
- proving,
- provisional,
- tentative,
- test,
- testing,
- trial,
- trial-and-error,
- trying,
- verificatory