" ignobly "

1: as in unethically, immorally;

•  Synonyms : 

•  immorally,

•  underhandedly,

•  unethically,

•  dirty,

•  illegally,

•  dishonorably

•  Antonyms : 

•  clean,

•  cleanly,

•  fair,

•  fairly,

•  legally,

•  ethically,

•  high-mindedly,

•  morally,

•  nobly,

•  honorably

1: belonging to the class of people of low social or economic rank;

  * e.g., " ... an ignoble child who would one day grow up to be a prince among playwrights "

•  Synonyms : 

•  baseborn,

•  common,

•  humble,

•  inferior,

•  low,

•  lowborn,

•  lower-class,

•  low-life,

•  lowly,

•  lumpen,

•  mean,

•  plebeian,

•  prole,

•  proletarian,

•  unwashed,

•  vulgar

•  Antonyms : 

•  aristocratic,

•  blue-blooded,

•  genteel,

•  gentle,

•  grand,

•  great,

•  high,

•  highborn,

•  highbred,

•  lofty,

•  noble,

•  patrician,

•  upper-class,

•  upper-crust,

•  wellborn

2: not following or in accordance with standards of honor and decency;

  * e.g., " ... such an ignoble act is completely unworthy of a military officer "

•  Synonyms : 

•  base,

•  contemptible,

•  currish,

•  despicable,

•  detestable,

•  dirty,

•  dishonorable,

•  execrable,

•  ignominious,

•  low,

•  low-down,

•  low-minded,

•  mean,

•  nasty,

•  paltry,

•  snide,

•  sordid,

•  vile,

•  wretched

•  Antonyms : 

•  high,

•  high-minded,

•  honorable,

•  lofty,

•  noble,

•  straight,

•  upright,

•  venerable,

•  virtuous