un·​mer·​ci·​ful | \ ˌən-ˈmər-si-fəl How to pronounce unmerciful (audio) \

Definition of unmerciful

1 : not merciful : merciless
2 : excessive, extreme chatted for an unmerciful length of time

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Other Words from unmerciful

unmercifully \ ˌən-​ˈmər-​si-​f(ə-​)lē How to pronounce unmercifully (audio) \ adverb

Examples of unmerciful in a Sentence

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

Recent Examples on the Web

For many riders, nothing but some leather, hard plastic and a bit of foam protects them from the unmerciful pavement. Jonathan Welsh, WSJ, "Safety Tech for Motorcyclists (and Those Who Worry About Them)," 24 Feb. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unmerciful.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of unmerciful

15th century, in the meaning defined at sense 1

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Time Traveler for unmerciful

The first known use of unmerciful was in the 15th century

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English Language Learners Definition of unmerciful

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

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More from Merriam-Webster on unmerciful

Thesaurus: All synonyms and antonyms for unmerciful

Spanish Central: Translation of unmerciful

Nglish: Translation of unmerciful for Spanish Speakers

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