polemical

US /pəˈlem.ɪ.kəl/
UK /pəˈlem.ɪ.kəl/
"polemical" picture
1.

relating to or involving strongly critical, controversial, or disputatious writing or speech

:
His polemical essay sparked a heated debate among scholars.
She is known for her sharp and often polemical critiques of social policy.