Which word describes something that is unstated or implied?

The word "tacit" signifies something that is understood or implied without being openly expressed. It refers to an absence of explicit communication; rather, it conveys meaning through context or mutual understanding. For example, a tacit agreement between individuals does not require formal documentation or verbal confirmation, as both parties understand the terms without needing to articulate them. This concept is often encountered in various forms of communication where nuances and unspoken rules play a significant role in interactions.

In contrast, the other choices present different meanings that do not align with the notion of being unstated or implied. For instance, "stymie" refers to hindering or obstructing a process, "supercilious" describes someone who behaves or looks as though they think they are superior to others, and "transient" pertains to something temporary or short-lived. None of these terms connect to the idea of something being understood without being explicitly stated.