noun / adjective
polemic
puh-LEM-ik/pəˈlemɪk/
A forceful argument against a belief or position.
The speaker delivers a polemic against the belief that Earth is flat.

Etymology
The pieces give “pertaining to war,” supplying an image of argument as verbal combat. The noun first meant a controversy or controversial argument, leading to its use for a forceful attack on a belief.
In context
the two of them collaborated to to produce a polemic against the young hegelians
More examples
- Her book is a polemic against the idea that success depends entirely on talent.
- The magazine publishes polemics challenging popular economic theories.
- His polemic essay attacks the belief that wealth measures human worth.
Forms
polemic · polemics
polemical adjective — Expressing a forceful attack on an opinion.
polemicist noun — A writer who forcefully attacks opposing views.