▸someone who is vociferous expresses their opinion loudly and with force
▸a vociferous opinion, reply, protest, etc. is expressed loudly and with force
She was so small that it would have been easier to toss her over his shoulder and run with her, but he sensed that she would vociferously resist such treatment and he cared not to waste time arguing. She was fine-boned and petite, yet prickly as a hungry boar. She was also lushly curved and scandalously clad and stirred a cauldron of lustful urges in him.
Moning, Karen Marie (2008-05-20). Kiss of the Highlander (Kindle Locations 560-561). Random House, Inc.. Kindle Edition.
Definition from Onelook.com