ruthless.
Without pity or compassion; cruel, pitiless.
Meaning & usage
Without pity or compassion; cruel, pitiless.
Uncompromising; unrelenting.
Where this word comes from
Etymology tree Proto-Germanic *hrewwaną Proto-West Germanic *hreuwan Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Germanic *-ō Proto-West Germanic *-u Proto-West Germanic *hreuwu Old English hrēow Middle English rewe Middle English -the Old Norse hrygðinflu. Middle English reuþe Proto-Indo-European *lewh₁- Proto-Indo-European *lewHs-der. Proto-Germanic *leusaną Proto-Germanic *lausaz Proto-Germanic *-lausaz Proto-West Germanic *-laus Old English -lēas Middle English -les Middle English reuþeles English ruthless From Middle English reuþeles; equivalent to ruth + -less.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.