"Fierce debate" refers to a conversation or argument where people have strong and intense disagreements or conflicting opinions about a particular topic. Full definition
We're living in a time of fierce debate over privacy concerns, an era where government and law enforcement argue for the right to GPS - track citizens without their knowledge. (1up.com)
The Internet is full of fierce debates over the pros and cons of feeding your pets grain - free, raw meat, high - fat, or low - carbohydrate diets. (petconsider.com)
There are fierce debates over the best way to prepare teachers. (caldercenter.org)