"Nubigenous" is a rare adjective that comes from the Latin word nubes, meaning "cloud," and -genous, meaning "born of" or "produced by." The term describes something that is cloud-born or created by clouds, often used to refer to things that originate in or are related to clouds. In a figurative sense, it can also be used to describe something that appears ethereal, transient, or connected to the sky or atmosphere, such as a vision or an idea that seems to emerge from the heavens.

Though not commonly used in everyday language, "nubigenous" evokes imagery of the sky and clouds, suggesting a sense of lightness, changeability, or the ephemeral nature of things that are created or shaped by the clouds.