Strident means loud and harsh, in sound or in opinion. A strident voice, strident criticism, increasingly strident.
Applied to opinions it is a complaint about the volume rather than the content. The Latin is creaking or screeching, which is what the sound sense keeps.
1adjectivestridentLoud and harsh, in sound or in opinion.
“The campaign grew more strident as the vote came closer.”
strident is a quality.
Latin stridens is the present participle of stridere, to creak or screech.
Latin
strīdēns
French
strident
English, today
strident
From French strident, from Latin strīdēns, present active participle of strīdō.
Etymology from Wiktionary, CC BY-SA