Remaining steady in affections or loyalties; faithful
Continuing indefinitely, or during a long period; perpetual; sometimes used, colloquially, as a strong intensive.
Without an end.
The definition of endless is continuing forever, or lasting for a very long time.
Being without beginning or end:
The definition of incessant is continuing without stopping.
Without, or apparently without, end; lasting, or seeming to last, forever; endless
Made or done without stops:
The definition of relentless is persistent or unyielding.
Always reliable; certain
Never slackening; persistent.
Existing or occurring without interruption or end
(Figuratively) Alternative form of night and day.
Continuing indefinitely without interruption; unceasing; constant
Find another word for round-the-clock. In this page you can discover 26 synonyms, antonyms, idiomatic expressions, and related words for round-the-clock, like: constant, continual, everlasting, around-the-clock, ceaseless, continuous, endless, eternal, incessant, interminable and nonstop.