unceasing Antonyms

wavelike serial rhythmic remittent recurrent recurring periodical parenthetic oscillatory occasional monthly lancinating iterant isochronous interrupted short short-lived unsustainable off and on mayfly bitty volatile undulatory transmigratory transitory transient terminable temporary spotty sporadical sporadic intermittent individual discontinuous cyclic continual concurrent concluding completed coincident ceasing brief broken bless anoint ambulatory alternating ending ephemeral impermanent