¿Algo "polémico" en inglés?
This is one of those special words in Spanish that improved my English when I learnt about it! When I first heard my students saying this word in English, my instinct was to correct them because it was not a word that I had heard in English before. My students would say something like: "It is a very "polemical" situation" or "It is very polemic".
My recommendation, in this case, is that in English it is better to use the word "controversial" and overall I still think this is true. I have, however, now had the time to look up the word in the dictionary and have seen that it can be used in English albeit in a more formal situation!
Hope that helps!
Soy el director de Daniel Smith + Partners. Tengo más de 10 años de experiencia enseñando inglés a españoles.