"Opposing" and "opposed" are, like many other pairs of present and past participles, respectively active and passive in meaning.
Both "opposed views" and "opposing views" are correct (the first phrase gives you the idea that the views are different, while the second one gives you the idea that one view actively undermines or counteracts the other). However, "diametrically opposed" is a set phrase.
With the noun "team," only "opposing" works as it implies that both teams fight to beat the other.
Hi, Gustavo, while I was going to issue a new post, luckily I found this one and so just add my inquiry here.
"When compared to people using search engines, as recent studies show, those who seek news and information from social media are at a higher risk of becoming trapped in a “collective social bubble" where news is shared within communities of like-minded individuals. In these bubbles of filtered information, people choose to consume material that reinforces their existing attitudes. Even when opposing views appear side by side, people still select from content that upholds opinions they already agree with. ... "
While according to your explanation the 'opposed' could be acceptable in the place of 'opposing' above, my problem is that every well-known dictionary specifies that "the adjective 'opposed' is not usually before noun" except a set phrase - 'diametrically opposed'. Maybe is this 'opposed' one of the predicative adjectives?
I would really appreciate if I could hear from you.