impetuousness impetuously • impetus · · · Info · Definitions · Synonyms · Characters · · impetuousness · · Text Latin · · Script 13 · · Length Definitions · · · (noun) rash impulsiveness. Synonyms: impetuosity. · · Noun Definition 1 Synonyms · · · impetuosity · · Synonym 1 Characters · · e latin small letter e U+0065 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 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075