Synonyms and related words :
articulated, catenated, ceaseless, concatenated, connected, constant, continual, continued, continuing, continuous, cyclical, direct, endless, featureless, gapless, immediate, incessant, interminable, joined, jointless, linked, monotonous, never-ending, nonstop, perennial, periodic, recurrent, repetitive, round-the-clock, running, serried, smooth, stable, steady, straight, twenty-four-hour, unbroken, unceasing, undifferentiated, unending, uniform, unintermitted, unintermittent, unintermitting, uninterrupted, unrelieved, unremitting, unstopped