Definition of "merciless" []

• Having no mercy; cruel. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "But they returned in the late morning, shaken by what they described as a merciless surprise attack by government forces with rocket- propelled grenades and heavy artillery."
• "But they returned in the late morning, shaken by what they described as a merciless surprise attack by government forces with rocket-propelled grenades and heavy artillery."
• "Opening the prosecution case today, Gerard Elias QC said the two double killings ammounted to what he called merciless executions for pitifully small gain."