Making, given to, or marked by noisy and vehement outcry.
Synonyms: vociferous, blatant, boisterous, strident, clamorous
These adjectives mean conspicuously and usually offensively loud. Vociferous suggests a noisy outcry, as of vehement protest: vociferous complaints. Blatant connotes coarse or vulgar noisiness: "students demanding unlimited freedom in a noisy and blatant protest against all university authority" (Thomas Anthony Harris).
Boisterous implies unrestrained noise, tumult, and often rowdiness: boisterous youths. Strident stresses offensive harshness, shrillness, or discordance: a legislator with a strident voice. Something clamorous is both vociferous and sustained: a clamorous uproar.
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.