fits and starts

desultory erratic frivolous haphazard indiscriminate pointless random

accidental any which way bits and pieces blind capricious careless casual chance directionless drifting fanciful fickle flighty fortuitous goalless heedless hit-or-miss indecisive irresolute objectless purposeless shiftless stray thoughtless unavailing undirected unguided unplanned unpredictable vagrant wandering wanton wayward

definite methodical particular sensible specific systematic

determined directed goal-oriented motivated pointed purposeful resolute

bits and pieces changeable choppy convulsive desultory fitful intermittent irregular jerky on-again-off-again periodic shaky spastic sporadic spotty spurtive uncertain

resting uninterrupted

desultory fitful infrequent intermittent irregular isolated occasional random rare scattered spotty

bits and pieces few hit-or-miss on-again-off-again scarce seldom semioccasional spasmodic uncommon unfrequent

common constant even frequent methodical regular systematic usual

continuous dependable