complementary angles complementary • complementary color · · · Info · Definitions · Characters · · complementary angles · · Text Common · · Latin · · Scripts 20 · · Length 8 · · Syllables Definitions · · · (noun) two angles whose sum is a right angle. Synonyms: complementary angles. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 g latin small letter g U+0067 l latin small letter l U+006C 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 y latin small letter y U+0079