Which term describes something that lasts for a brief time?

The term that best describes something that lasts for a brief time is "ephemeral." This word originates from the Greek word "ephēmeros," which means "lasting only a day." It conveys the idea of fleetingness or something that is temporary in nature, emphasizing the short duration of existence.

In contexts such as nature, beauty, or certain phenomena, the application of "ephemeral" often highlights how quickly these experiences or objects fade away. For instance, blooming flowers may be described as ephemeral if they only last a few days or weeks.

While "transient" also suggests a temporary state, it can carry a broader meaning that includes various aspects of change or movement through time. "Perpetual" and "enduring," on the other hand, indicate continuity and long-lasting qualities, contrasting sharply with the concept of brevity. Thus, "ephemeral" is the most precise term to encapsulate the idea of something that exists for only a short period.