1) Cacophonic 2) Cacophonous 3) Far from mellifluous 4) Grating 5) Grating voice-wise 6) Grating, voicewise 7) Gravel 8) Gravelly 9) Gravelly voiced 10) Harsh 11) Harsh-sounding 12) Harsh-toned 13) Hoarse 14) Hoarse-sounding 15) Like a dry throat 16) Like a hoarse voice 17) Like grating voice 18) Like nails on a blackboard 1) Cacophonic 2) Cacophonous 3) Grating 4) Gravel 5) Harsh 6) Hoarse 7) Rasping 
• (a.) Like a rasp, or the sound made by a rasp; grating.
Rasp'y (rȧsp'ȳ) adjective Like a rasp, or the sound made by a rasp; grating. R. D. Blackmore.