English edit

Etymology edit

unmerciful +‎ -ly

Adverb edit

unmercifully (comparative more unmercifully, superlative most unmercifully)

  1. In an unmerciful manner.
    • 1835, Theodore Hook, Gilbert Gurney:
      They unmercifully bundled me and my gallant second into our own hackney coach.
    • 1936, Rollo Ahmed, The Black Art, London: Long, page 99:
      These men lashed themselves and each other unmercifully with knotted leather scourges until the blood ran, two or three times daily.