Added 9 October 2026
merciless
/ˈmɜːsɪləs/ adjective
In Latin: immisericors Wiktionary
adjective Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about merciless at Wordnik → Where our words come from →
Origin
From Middle English merciles, mercyles, equivalent to mercy + -less.
From Wiktionary, via Kaikki.org (CC BY-SA)