" zealously "

1: as in actively, vigorously;

•  Synonyms : 

•  actively,

•  animatedly,

•  briskly,

•  busily,

•  dynamically,

•  energetically,

•  feverishly,

•  spiritedly,

•  vehemently,

•  vigorously,

•  amain,

•  arduously,

•  assiduously,

•  determinedly,

•  diligently,

•  doggedly,

•  hard,

•  hardly,

•  industriously,

•  intensely,

•  intensively,

•  intently,

•  laboriously,

•  mightily,

•  purposefully,

•  resolutely,

•  sedulously,

•  slavishly,

•  strenuously,

•  continuously,

•  ploddingly,

•  steadfastly,

•  steadily,

•  unabatedly,

•  unrelentingly,

•  unremittingly,

•  ardently,

•  attentively,

•  conscientiously,

•  earnestly,

•  exhaustively,

•  meticulously,

•  painstakingly,

•  seriously,

•  thoroughly,

•  indefatigably,

•  tirelessly,

•  unflaggingly,

•  untiringly,

•  wearilessly,

•  obstinately,

•  stubbornly,

•  willfully

•  Antonyms : 

•  casually,

•  desultorily,

•  halfheartedly,

•  indolently,

•  lackadaisically,

•  languidly,

•  lazily,

•  listlessly,

•  shiftlessly,

•  sluggishly,

•  spiritlessly,

•  tiredly,

•  wearily

2: as in warmly, fanatically;

•  Synonyms : 

•  fanatically,

•  rabidly,

•  warmly,

•  avidly,

•  eagerly,

•  excitedly,

•  impatiently,

•  keenly,

•  enthusiastically,

•  exuberantly,

•  madly,

•  rhapsodically,

•  sky-high

•  Antonyms : 

•  apathetically,

•  indifferently,

•  lukewarmly,

•  perfunctorily,

•  aloofly,

•  disinterestedly,

•  impassively,

•  incuriously,

•  hesitantly,

•  reluctantly,

•  unwillingly

1: feeling or showing strong and energetic support for a person, cause, etc.; filled with zeal;

  * e.g., " ... zealous fans "

•  Synonyms : 

•  enthusiastic,

•  gung ho,

•  keen,

•  ardent,

•  blazing,

•  burning,

•  charged,

•  demonstrative,

•  emotional,

•  fervent,

•  fervid,

•  feverish,

•  fiery,

•  flaming,

•  glowing,

•  hot-blooded,

•  impassioned,

•  incandescent,

•  intense,

•  passional,

•  passionate,

•  perfervid,

•  red-hot,

•  religious,

•  superheated,

•  torrid,

•  vehement,

•  warm,

•  warm-blooded,

•  gushing,

•  gushy,

•  maudlin,

•  mawkish,

•  mushy,

•  saccharine,

•  sappy,

•  schmaltzy,

•  sentimental,

•  sloppy,

•  sugary,

•  histrionic,

•  melodramatic,

•  enamored,

•  infatuated,

•  obsessed,

•  uninhibited,

•  unreserved,

•  unrestrained,

•  frenzied,

•  orgiastic,

•  overemotional,

•  overexcited,

•  overheated

•  Antonyms : 

•  detached,

•  dry,

•  impersonal,

•  objective,

•  reserved,

•  undemonstrative,

•  cold,

•  cool,

•  dispassionate,

•  emotionless,

•  impassive,

•  unemotional