presumptuousness presumptuously • presuperficial · · · Info · Definitions · Synonyms · Characters · · presumptuousness · · Text Latin · · Script 16 · · Length Definitions · · · (noun) audacious (even arrogant) behavior that you have no right to. Synonyms: presumption, effrontery, assumption. Example: "He despised them for their presumptuousness." · · Noun Definition 1 Synonyms · · · presumption · · Synonym 1 effrontery · · Synonym 2 assumption · · Synonym 3 Characters · · e latin small letter e U+0065 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 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075