Similar word to piecemeal:
at intervals, by degrees, by fits and starts, fitfully, fragmentary, gradual, gradually, intermittent, intermittently, interrupted, little by little, partial, partially, patchy, spotty, step by step
at intervals, by degrees, by fits and starts, fitfully, fragmentary, gradual, gradually, intermittent, intermittently, interrupted, little by little, partial, partially, patchy, spotty, step by step