Standard Lemma guide

mercilessness

noun · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈmɜː(ɹ)sɪləsnəs/
  • Southern-England: Recorded audio is listed in the source snapshot.

1

noun

Meaning 1

The property of being merciless.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable, usually

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

inhumaneness evidenced by an unwillingness to be kind or forgiving

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: unmercifulness

Antonyms: mercifulness

Broader terms: inhumaneness, inhumanity

Narrower terms: pitilessness, ruthlessness, relentlessness, inexorability, inexorableness

3

noun

Meaning 3

feelings of extreme heartlessness

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: cruelty, pitilessness, ruthlessness

Antonyms: none provided

Broader terms: heartlessness, coldheartedness, hardheartedness

History

Etymology

Etymology tree English merciless Proto-Germanic *-inōną Proto-Indo-European *-dyé- Proto-Germanic *-atjaną Proto-Indo-European *-tus Proto-Germanic *-þuz Proto-Germanic *-assuz Proto-Germanic *-inassuz Proto-West Germanic *-nassī Old English -nes Middle English -nesse English -ness English mercilessness From merciless + -ness.

Across languages

Translations

22 source translations are retained for this English entry.

  • Dutch: genadeloosheid — the property of being merciless
  • French: impitoyabilité — the property of being merciless
  • Georgian: შეუბრალებლობა (šeubralebloba) — the property of being merciless
  • Georgian: ულმობელობა (ulmobeloba) — the property of being merciless
  • Georgian: დაუნდობლობა (daundobloba) — the property of being merciless
  • Georgian: უმოწყალობა (umoc̣q̇aloba) — the property of being merciless
  • German: Erbarmungslosigkeit — the property of being merciless
  • German: Schonungslosigkeit — the property of being merciless
  • Hindi: निर्दयता (nirdaytā) — the property of being merciless
  • Hindi: क्रूरता (krūrtā) — the property of being merciless
  • Japanese: 無慈悲 (mujihi) — the property of being merciless
  • Korean: 무자비 (mujabi) — the property of being merciless
  • Luxembourgish: Onbaarmhäerzegkeet — the property of being merciless
  • Polish: niemiłosierność — the property of being merciless
  • Polish: bezlitosność — the property of being merciless
  • Polish: bezpardonowość — the property of being merciless
  • Polish: bezwzględność — the property of being merciless
  • Romanian: cruzime — the property of being merciless
  • Romanian: ferocitate — the property of being merciless
  • Russian: беспоща́дность (bespoščádnostʹ) — the property of being merciless
  • Spanish: inmisericordia — the property of being merciless
  • Ottoman Turkish: دینسزلك (dinsizlik) — the property of being merciless