peace of mind peace march • peace of westphalia · · · Info · Definitions · Synonyms · Characters · · peace of mind · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) the absence of mental stress or anxiety. Synonyms: peace, peacefulness, peace of mind, repose, serenity, heartsease, ataraxis. · · Noun Definition 1 Synonyms · · · peace · · Synonym 1 peacefulness · · Synonym 2 repose · · Synonym 3 serenity · · Synonym 4 heartsease · · Synonym 5 ataraxis · · Synonym 6 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070