Rule reminder
'Grande' = big/great (general, all-purpose). 'Vasto' = vast/wide (formal; implies extent or range — knowledge, territory, space). 'Ampio' = ample/wide/broad (formal; implies spaciousness or breadth — rooms, margins, freedoms). 'Considerevole' = considerable (formal; implies notable quantity or degree). 'Imponente' = imposing/impressive (describes physical grandeur or impressive scale — buildings, figures, structures).
Il professore aveva una _____ cultura: conosceva storia, arte e scienze.