break (new) ground, groundbreaking

20. PHRASE : V inflects

If you break new ground, you do something completely different or you do something in a completely different way.

• Gellhorn may have broken new ground when she filed her first report on the Spanish Civil War.

groundbreaking, also ground-breaking ADJ : usu ADJ n

You use groundbreaking to describe things which you think are significant because they provide new and positive ideas, and influence the way people think about things.

• his groundbreaking novel on homosexuality.
• groundbreaking research.

... Cobuild

break (new) ground:

to do something that has never been done before

• Movie makers have broken ground in this film with their use of computer-generated special effects.

Etymology: based on the literal meaning of break ground (to dig up land so you can plant crops or build something)

... Cambridge Dictionary of American Idioms