POLEMIC

adj.
Fr polmique <> L palpitare, to tremble
1 of or involving dispute; controversial
2 argumentative; disputatious Also, esp. for 2, po[lem$i[cal

n.
1 an argument or controversial discussion
2 a person inclined to engage in argument or disputation
polemically

adv.
polemic
modif.
— Syn. polemical, discursive, argumentative, contestable, disputatious; see also controversial, quarrelsome 1, questionable 1, uncertain 2.See dispute, forensic

He keeps on stirring polemics.

All news channels are on a lookout for a meaty polemic so that their day's programming can be configured on it.