experimental Synonyms

data-based observational trial testing test tentative temporary speculative scientific revolutionary radical provisionary provisional prodromal probative probationary preparatory underground unready untried untested thermonuclear unproven prodromic investigational innovatory unconventional unproved unorthodox groundbreaking way-out piolet beta avant-garde forward-looking prelusory preludial preliminary exploratory explorative experimentally experiment experiential experient existential empiricist empirical empiric developmental creative