adjective

innovative; pioneering.

groundbreaking research into fertility problems

innovative,inventive,creative,disruptive,innovatory,innovational,seminal,original,new,novel,fresh,unconventional,unorthodox,off-centre,unusual,unfamiliar,ingenious,unprecedented,avant-garde,experimental,pioneering,mould-breaking,trailblazing,revolutionary,radical,advanced,newfangled,new-fashioned,modern,modernistic,ultra-modern,state-of-the-art,futuristic,neoteric