|Origin:||vocalis, from vox; VOICE1|
expressing strong opinions publicly, especially about things that you disagree with [= outspoken]
Foley has been particularly vocal in his criticism of the government.
vocal opponent/critic/supporter etc
She was a vocal opponent of the plan.
2 [only before noun]APM
relating to the voice or to singing:
Allison's vocal style is influenced by country and blues music.
a female vocal group