5
sour(adjective, hard, severe, sharp, rough)
5
stentorian(adjective, clear, strong, sharp, harsh)
5
stridulous(adjective, hard, severe, sharp, rough)
5
treble(adjective, sharp, intense, high, loud)
4
acrid(adjective, hard, severe, sharp, flat)
4
acrimonious(adjective, conflicting, dissenting, disagreeing, frictional)
4
atonal
4
bitter(adjective, hard, severe, sharp, flat)
4
blaring(adjective, clear, strong, rough, loud)
4
brassy(adjective, vulgar, loud)
4
clangorous(adjective, clear, pleasant, pure, full)
4
continuant
4
disharmonic(adjective, discordant, noisy, asperous, inharmonious)
4
insistent
4
keen
4
loudmouthed(adjective, informal, sounds)
4
raspy(adjective, loud, piercing, sounds)
4
scraping(adjective, shrill)
4
screaming(adjective, loud, piercing, shrill)
4
sibilant
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APASmart Define. (2015). strident thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/strident/thesaurus/synonyms
ChicagoSmart Define. 2015. "strident thesaurus" https://smartdefine.org/strident/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, strident thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/strident/thesaurus/synonyms>.
MLASmart Define. "strident thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/strident/thesaurus/synonyms>