BARONIAL Meaning of BARONIAL in English ba ‧ ro ‧ ni ‧ al /bəˈrəʊniəl $ -ˈroʊ-/ BrE AmE adjective 1 . very large and richly decorated:a splendid baronial house 2 . belonging to or involving ↑ baron s Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012