Nonrising

Nonrising is an adjective used to describe something that does not rise. It can apply to physical movement, measurements, or trends that remain at or below a starting level rather than increasing. The term is formed from the prefix non- and rising, and is most often found in descriptive or field-specific writing where precise terminology is important, though it is less common in formal mathematics or statistics where more precise terms are preferred.

In science and engineering, nonrising may be used to characterize trajectories, readings, or responses that do not ascend over a stated interval. For example, a nonrising temperature trend would indicate no upward change during the observation period, while a nonrising signal in a control system remains at or below its initial amplitude.

In linguistics, the word can describe tone or pitch contours that do not rise, such as level or falling tones as opposed to rising tones. The concept is generally covered by more precise terms in specific theories, depending on the language and analytic framework.

See also: rising tone, monotone, flat, nonincreasing, decreasing.