sereneadjectivefeminine/sɨˈɾɛnɐ/mediumse·re·naPortuguesEnglishEspanolFrancaisDefinitionCalm and peaceful.The lagoon was serene this morning.She has a serene personality.syncalmpeacefulantagitatedEtymologyDo latim 'serenus'Related wordsserenidadeserenamente