When combined, 争议 (zhēngyì) literally means “to contend through discussion.” This perfectly captures the modern meaning of a “controversy”—a situation where different parties use arguments and debate to contend for their position on an issue.
In many Western cultures, open debate and controversy can be viewed as a healthy and necessary part of a functioning society—a way to challenge ideas and arrive at a better truth. While debate certainly exists in China, the concept of 争议 (zhēngyì) is often viewed through the cultural lens of 和谐 (héxié) - harmony. A public 争议 (zhēngyì) can be seen as a disruption of social harmony and a sign of friction. The ideal is often to find consensus and maintain a smooth social fabric. Therefore, a matter described as having 争议 (zhēngyì) is implicitly a significant problem that needs to be resolved, rather than a celebrated feature of public life. This doesn't mean disagreement is suppressed, but that there is often a cultural preference for resolving it privately or through mediation to avoid large-scale, public contention. This makes the word 争议 (zhēngyì) feel more serious and weighty than the English “controversy” might in some contexts.
争议 (zhēngyì) is a formal and neutral-to-slightly-negative term. You will encounter it most frequently in written Chinese and formal discussions.