" fitfully "

1: as in intermittently, unpredictably;

•  Synonyms : 

•  disconnectedly,

•  disjointedly,

•  intermittently,

•  spottily,

•  unpredictably,

•  accidentally,

•  fortuitously,

•  inadvertently,

•  unconsciously,

•  unintentionally,

•  unwittingly,

•  higgledy-piggledy,

•  topsy-turvy,

•  arbitrarily,

•  capriciously,

•  carelessly,

•  casually,

•  indiscriminately,

•  informally,

•  offhand,

•  offhandedly,

•  promiscuously,

•  whimsically,

•  aimlessly,

•  anyhow,

•  anyway,

•  anywise,

•  desultorily,

•  erratically,

•  haphazard,

•  haphazardly,

•  helter-skelter,

•  hit or miss,

•  irregularly,

•  randomly,

•  willy-nilly

•  Antonyms : 

•  methodically,

•  systematically,

•  carefully,

•  formally,

•  gingerly,

•  meticulously,

•  orderly,

•  punctiliously,

•  deliberately,

•  intentionally,

•  purposefully,

•  purposely

1: lacking in steadiness or regularity of occurrence;

  * e.g., " ... a night of fitful sleep did not leave me feeling well rested the next morning "

•  Synonyms : 

•  aperiodic,

•  casual,

•  catchy,

•  choppy,

•  discontinuous,

•  episodic,

•  erratic,

•  intermittent,

•  irregular,

•  occasional,

•  spasmodic,

•  spastic,

•  sporadic,

•  spotty,

•  unsteady

•  Antonyms : 

•  constant,

•  continuous,

•  habitual,

•  periodic,

•  regular,

•  repeated,

•  steady