vociferous
adjectiveUK /vəˈsɪf.ər.əs/
US /voʊˈsɪf.ɚ.əs/
Someone who is vociferous talks very loudly and strongly about what they want.
The vociferous fans cheered so loudly that the whole stadium could hear them.
OTHER MEANINGS
2. Expressing opinions in a very strong and forceful way.
She was a vociferous critic of the new school rules.
3. Making a lot of noise, especially in a group.
A vociferous crowd gathered outside the town hall.
4. Demanding something in a loud and insistent manner.
The students were vociferous in their call for a longer break.