The term 'unpleasantly loud' can be described by three crossword solutions: RAUCOUS (7 letters), STRIDENT (8 letters), and NOISY (5 letters). RAUCOUS is an adjective that means harsh and loud, often in a disorderly way. STRIDENT is an adjective that means loud and harsh in a grating or unpleasant way. NOISY is an adjective that means making or characterized by loud and confused sounds. All three words describe a sound that is loud and unpleasant to the ear.