Incessant

a. [L. Lat. incessans, from Lat. prefix in and cessare, to cease; Fr. incessant, It. incessante, Sp. incessante.] Continuing or following without interruption; unceasing; unintermitted; uninterrupted; continual; as, incessant rains; incessant clamors.

Synonyms—Unceasing; uninterrupted; unintermitted; ceaseless; continual; constant; perpetual.

n. The state or quality of being incessant. [Obs. or rare.] Scott.