formative

American novelist William Faulkner, in particular, was formative to his thinking.

The cast also shaved each other's heads before filming and got shared tattoos afterwards, speaking about how they wanted to mark what had been a "formative" experience, building lasting friendships.

"It was really formative for me," Connor says about his time on the film.

In this latest study – of the children of the children of the 90s – scientists are looking specifically at formative abilities and brain development.

It is absolutely true, as Leslie chronicles in painstaking fashion, that Lennon and McCartney shared a closeness during their formative years through The Beatles’ final months as a working rock ‘n’ roll band.