相反 + Noun/Adjective
When 相反 (xiāngfǎn) appears as a bound element in compound words or set phrases, it still carries the core meaning of "opposite" or "contrary." In these cases it functions as part of a larger expression rather than standing alone. This usage is common in more formal or written Chinese.
这两种观点是相反的立场,很难调和。
zhè liǎng zhǒng guāndiǎn shì xiāngfǎn de lìchǎng, hěn nán tiáohé.
These two viewpoints are opposing positions and are hard to reconcile.
他们得出了截然相反的结论。
tāmen dé chū le jiérán xiāngfǎn de jiélùn.
They reached diametrically opposite conclusions.
正反相反的意见都应该听一听。
zhèng fǎn xiāngfǎn de yìjiàn dōu yīnggāi tīng yī tīng.
Opinions both for and against should all be heard.