painless

adjective
pain·​less | \ ˈpān-ləs How to pronounce painless (audio) \

Medical Definition of painless

1 : not experiencing pain
2 : not causing pain : not accompanied by pain : not painful painless surgery

Other Words from painless

painlessly adverb

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More from Merriam-Webster on painless

Thesaurus: All synonyms and antonyms for painless

Spanish Central: Translation of painless

Nglish: Translation of painless for Spanish Speakers

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