STRIDENT

adj. shrill, raucous, harsh, loud, grating, stridulous, stridulant, scraping, scratching, scratchy, grinding, hoarse, rough, guttural, husky, gravelly, rasping, jarring, discordant, unharmonious, unmelodious, unmusical, cacophonous, croaking, creaking Her strident voice could be heard all over the building