IPA: //ˌhaɪpərɪˈfɪʃənt//
KK: /haɪpərɪˈfɪʃənt/
Very effective and productive, achieving maximum results with minimal waste or effort.
The new software is hyperefficient, allowing the team to complete tasks in half the usual time.
Hyperefficient → It is formed from "hyper-" (from Greek "hyper", meaning over or beyond) and "efficient" (from Latin "efficere", meaning to accomplish or bring about). The word "hyperefficient" describes a state of being more efficient than what is considered normal or necessary.
Think of 'hyper-' meaning 'beyond' and 'efficient' meaning 'able to accomplish' — so hyperefficient means being able to accomplish even more than usual.