challenging (a) (general) | provocatorio (a) (general) |
challenging (a) (general) | difficoltoso (a) (general) |
challenging (a) (general) | stimolante (m) (a) (general) |
challenging (a) (general) | che mette alla prova (a) (general) |
challenging (a) (general) | impegnativo (a) (general) |
challenging (a) (general) | di sfida (a) (general) |
challenging (a) (general) | preminente (a) (general) |
challenging (a) (general) | di primo piano (a) (general) |