U0096400 (ŭn-mûr′sĭ-fəl)adj.1. Having or exhibiting no mercy; merciless.2. Exceeding a normal or reasonable limit; excessive: unmerciful heat.un·mer′ci·ful·ly adv.un·mer′ci·ful·ness n.Thesaurus
Adv.
1.
unmercifully - without pity; in a merciless manner; "he was mercilessly trounced by his opponent in the House"mercilessly, pitilessly, remorselessly