" rottenly "

1: as in terribly, horribly;

•  Synonyms : 

•  abysmally,

•  atrociously,

•  awfully,

•  damnably,

•  deplorably,

•  detestably,

•  disastrously,

•  dreadfully,

•  execrably,

•  horrendously,

•  horribly,

•  horrifically,

•  terribly,

•  bad,

•  badly,

•  deficiently,

•  inadequately,

•  lousily,

•  poorly,

•  unacceptably,

•  unsatisfactorily,

•  wretchedly,

•  intolerably,

•  unbearably,

•  inappropriately,

•  incorrectly,

•  indecently,

•  reprehensibly,

•  unsuitably,

•  vulgarly,

•  naughtily,

•  egregiously,

•  flagrantly,

•  grossly,

•  miserably,

•  shoddily,

•  sleazily,

•  trashily,

•  unspeakably,

•  abominably,

•  odiously,

•  vilely,

•  inferiorly,

•  insufficiently,

•  meagerly,

•  meanly,

•  scantily,

•  scantly,

•  shabbily,

•  skimpily,

•  sparely,

•  stingily

•  Antonyms : 

•  acceptably,

•  adequately,

•  all right,

•  fine,

•  good,

•  nicely,

•  OK,

•  palatably,

•  passably,

•  satisfactorily,

•  so-so,

•  tolerably,

•  well,

•  appropriately,

•  congruously,

•  correctly,

•  decently,

•  decorously,

•  felicitously,

•  fittingly,

•  meetly,

•  rightly,

•  seemly,

•  suitably,

•  exactly,

•  faithfully,

•  ideally,

•  precisely,

•  respectably,

•  gratifyingly,

•  satisfyingly

1: having undergone organic breakdown;

  * e.g., " ... rotten, smelly meat that should have been thrown out "

•  Synonyms : 

•  addled,

•  bad,

•  corrupted,

•  decayed,

•  decomposed,

•  putrefied,

•  putrid,

•  spoiled

•  Antonyms : 

•  undecomposed

2: not conforming to a high moral standard; morally unacceptable;

  * e.g., " ... played a rotten trick and then lied about it "

•  Synonyms : 

•  bad,

•  dark,

•  evil,

•  immoral,

•  iniquitous,

•  nefarious,

•  sinful,

•  unethical,

•  unlawful,

•  unrighteous,

•  unsavory,

•  vicious,

•  vile,

•  villainous,

•  wicked,

•  wrong

•  Antonyms : 

•  decent,

•  ethical,

•  good,

•  honest,

•  honorable,

•  just,

•  moral,

•  right,

•  righteous,

•  sublime,

•  upright,

•  virtuous

3: not giving pleasure to the mind or senses;

  * e.g., " ... had a rotten time while on vacation "

•  Synonyms : 

•  bad,

•  bitter,

•  disagreeable,

•  displeasing,

•  distasteful,

•  harsh,

•  icky,

•  nasty,

•  sour,

•  uncongenial,

•  unlovely,

•  unpalatable,

•  unpleasant,

•  unpleasing,

•  unsavory,

•  unwelcome,

•  wicked,

•  yucky

•  Antonyms : 

•  agreeable,

•  congenial,

•  good,

•  grateful,

•  gratifying,

•  nice,

•  palatable,

•  pleasant,

•  pleasing,

•  pleasurable,

•  satisfying,

•  welcome