adjective un·mer·ci·ful \ˌən-ˈmər-si-fəl\

: not having or showing any mercy : very harsh or cruel

Full Definition of UNMERCIFUL

:  not merciful :  merciless
:  excessive, extreme <chatted for an unmerciful length of time>
un·mer·ci·ful·ly \-f(ə-)lē\ adverb

Examples of UNMERCIFUL

  1. <she went into an unmerciful level of detail about her latest health problems>
  2. <the critics were unmerciful in their assessments of the young actress's performance>

First Known Use of UNMERCIFUL

14th century


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