vociferous

adj

Etymology: From Latin vōcifer + -ous.

1. Making or characterized by a noisy outcry; clamorous.

   “They crowded around him with vociferous welcome, Brown leading in a series of wild cheers.”

   “No sooner had a waiting locomotive backed on to its train, the vociferous 4-6-4 or 4-8-4 re-emerged from under the bridge, and the two red marker lights on the last vehicles passed, than the headlight of the electric engine hauling the following train could be seen under the bridge and the waiting queue of locomotives had moved up one.”

2. Vocally and forcefully opinionated.

   “Not even the most vociferous advocates of reform were willing to go to such lengths.”

   “Lesbians Rising […] is known as one of the most vociferous groups working against social oppression of minority interests on campus.”