Which term is used to describe something that continues without pause or interruption?

The term "incessant" specifically refers to something that continues without pause or interruption. It conveys the idea of an action or condition that is persistent or ongoing, often to the extent that it may become bothersome or overwhelming. For example, incessant rain refers to rainfall that does not stop, highlighting its continuous nature.

In contrast, the other terms provided have distinct meanings that do not imply a lack of interruption. "Gradual" suggests something that occurs slowly over time rather than continuously. "Occasional" indicates something that happens from time to time, not regularly or consistently. "Temporary" refers to something that lasts for a limited period, emphasizing its short duration rather than its continuity. Thus, "incessant" is the most accurate term to describe something that is unceasing.