ancient (adjective) ancient: old, often very old
Sinonime: aeonian, around-the-clock, ceaseless,
connected,
consecutive, continuous, dateless, endless,
enduring, eternal, everlasting,
frequent, interminable, oft-repeated,
permanent, perpetual, persistent, persisting,
recurrent,
regular, relentless,
repeated,
repetitive,
running, staying,
steady, timeless, unbroken, unceasing,
unchanging, unending, unfailing, unflagging, uninterrupted, unremitting, unvarying, unwaning
Antonime: broken, ceasing, checked, halting, inconstant, infrequent,
intermittent, interrupted,
occasional,
temporary