Sometimes it's just best to avoid topics that might be controversial. ✬

This movie is highly controversial. ✬

This idea is controversial. ✬

It was a controversial decision. ✬

This subject is extremely controversial. ✬

Everything Tom does is controversial. ✬

That's a controversial theory. ✬

This theory is very controversial. ✬

This is a controversial issue. ✬

That's very controversial. ✬