strident

loud, stentorian, earsplitting, raucous, strident mean marked by intensity or volume of sound. loud applies to any volume above normal and may suggest undue vehemence or obtrusiveness <loud shouts of protest>. stentorian implies great power and range <an actor with a stentorian voice>. earsplitting implies loudness that is physically discomforting <the earsplitting sound of a siren>. raucous implies a loud harsh grating tone, especially of voice, and may suggest rowdiness <the raucous shouts of drunken revelers>. strident implies a rasping discordant but insistent quality, especially of voice <the strident voices of hecklers>.

vociferous, clamorous, blatant, strident, boisterous, obstreperous mean so loud or insistent as to compel attention. vociferous implies a vehement shouting or calling out <vociferous cries of protest and outrage>. clamorous may imply insistency as well as vociferousness in demanding or protesting <clamorous demands for prison reforms>. blatant implies an offensive bellowing or insensitive loudness <blatant rock music> <a blatant clamor for impeachment>. strident suggests harsh and discordant noise <heard the strident cry of the crow>. boisterous suggests a noisiness and turbulence due to high spirits <a boisterous crowd of party goers>. obstreperous suggests unruly and aggressive noisiness and resistance to restraint <the obstreperous demonstrators were arrested>.