" unmerciful "

1: going beyond a normal or acceptable limit in degree or amount;

  * e.g., " ... she went into an unmerciful level of detail about her latest health problems "

•  Synonyms : 

•  baroque,

•  devilish,

•  excessive,

•  exorbitant,

•  extravagant,

•  extreme,

•  fancy,

•  immoderate,

•  inordinate,

•  insane,

•  intolerable,

•  lavish,

•  over-the-top,

•  overdue,

•  overextravagant,

•  overmuch,

•  overweening,

•  plethoric,

•  steep,

•  stiff,

•  towering,

•  unconscionable,

•  undue

•  Antonyms : 

•  middling,

•  moderate,

•  modest,

•  reasonable,

•  temperate

2: having or showing a lack of sympathy or tender feelings;

  * e.g., " ... the critics were unmerciful in their assessments of the young actress's performance "

•  Synonyms : 

•  affectless,

•  callous,

•  case-hardened,

•  cold-blooded,

•  compassionless,

•  desensitized,

•  hard,

•  hard-boiled,

•  hard-hearted,

•  heartless,

•  indurate,

•  inhuman,

•  inhumane,

•  insensate,

•  insensitive,

•  ironhearted,

•  merciless,

•  obdurate,

•  pachydermatous,

•  pitiless,

•  remorseless,

•  ruthless,

•  slash-and-burn,

•  soulless,

•  stony,

•  stonyhearted,

•  take-no-prisoners,

•  thick-skinned,

•  uncharitable,

•  unfeeling,

•  unsparing,

•  unsympathetic

•  Antonyms : 

•  charitable,

•  compassionate,

•  humane,

•  kindhearted,

•  kindly,

•  merciful,

•  sensitive,

•  softhearted,

•  sympathetic,

•  tender,

•  tenderhearted,

•  warm,

•  warmhearted