heir presumptive heir portioner • heirship · · · Info · Definitions · Antonyms · Characters · · heir presumptive · · Text Common · · Latin · · Scripts 16 · · Length 5 · · Syllables Definitions · · · (noun) a person who expects to inherit but whose right can be defeated by the birth of a nearer relative. Synonyms: heir presumptive. · · Noun Definition 1 Antonyms · · · heir apparent · · Antonym 0 Characters · · space U+0020 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D 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 v latin small letter v U+0076