Jacobean /ˌd͡ʒæk.əˈbi.ən/adjective 2noun 1forms 3 adjective2 •Relating to a Jacob or James. •(historical) Relating to or characteristic of the reign of James VI and I (of Scotland and England, 1567–1625). noun1 •A partisan of James I and of the House of Stuart. formsJacobeans · more Jacobean · most Jacobean