vociferant

[voh-sif-er-uh nt] /voʊˈsɪf ər ənt/
adjective
1.
vociferating; noisy.
noun
2.
a person who vociferates.
Origin
1600-10; < Latin vōciferant- (stem of vōciferāns), present participle of vociferārī to vociferate; see -ant
British Dictionary definitions for vociferant

vociferant

/vəʊˈsɪfərənt/
adjective
1.
a less common word for vociferous
noun
2.
(rare) a vociferous person
Derived Forms
vociferance, noun
Word Origin
C17: from Latin vōciferārī to bawl; see vociferate