Rule reminder
Italian adjective suffixes: -oso means 'full of' or 'characterized by' (rumore → rumoroso = noisy; pericolo → pericoloso = dangerous). -abile attaches to -are verbs meaning 'can be done' (mangiare → mangiabile = edible; consigliare → consigliabile = advisable). -ibile attaches to -ere/-ire verbs (credere → credibile = credible; punire → punibile = punishable).
From 'pericolo' (danger), which adjective means 'dangerous'?