sporadic Antonyms

continual commonly found unrelenting undulatory unbroken ubiquitous steady sequential routine repeated relentless reiterative regular recurrent recurring persistent unremitting usual uninterrupted any number of at different times fairly common all too common awful lot undiscouraged dime a dozen 24-7 revenant firmware nonstop round the clock around the clock unceasing perseverant perpetual periodic conventional continuous continuing constant commonplace common cohesive chronological chronical changeless ceaseless bare average assiduous