simple interest simpleheartedness • simple leaf · · · Info · Definitions · Characters · · simple interest · · Text Common · · Latin · · Scripts 15 · · Length 5 · · Syllables Definitions · · · (noun) interest paid on the principal alone. Synonyms: simple interest. · · Noun Definition 1 Characters · · space U+0020 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E 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