incessantly
Definitions
Without interruption; constantly.
Continuing for a long time in an annoying or unpleasant way.
Examples
The rain drummed incessantly against the windowpane throughout the entire night.
She talked incessantly about her upcoming travel plans, barely pausing to take a breath.
Synonyms
constantly perpetually ceaselessly continually endlessly persistently relentlessly
Antonyms
occasionally intermittently sporadically infrequently rarely seldom periodically