cutting-edge

/ˌkʌtɪŋ ˈedʒ/

cutting-edge

BrE /ˌkʌtɪŋ ˈedʒ/

NAmE /ˌkʌtɪŋ ˈedʒ/

at the newest, most advanced stage in the development of sth

cutting-edge technology/research/science/design