say it: uhn-MUR-si-fuhl
unmerciful is an adjective meaning "having or showing no mercy". It is pronounced /ənˈmɝsɪfəl/ — uhn-MUR-si-fuhl. It carries one recorded sense.
Definitions, synonyms and semantic relations for unmerciful come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.