transformational

adjective

of, relating to, characterized by, or concerned with transformation and especially linguistic transformation

Wiktionary

adj

Etymology: Etymology tree English transformation Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English transformational From transformation + -al.

Of, pertaining to or leading to transformation.
“Cutting Nottingham-Birmingham journey times from 72 minutes to 27 minutes is indeed transformational.”