Looking up...
Cest un travail très cérébral.
It is very cerebral work.
Relating to the brain.
Il a subi un examen cérébral complet.
He underwent a full brain examination.
Intellectual, happening in the mind.
Cest un travail très cérébral.
It is very cerebral work.
Elle mène une vie très cérébrale.
She leads a very intellectual life.
From Latin cerebrum, brain, with adjective ending al.