reflex action reflex • reflex angle · · · Info · Definitions · Synonyms · Characters · · reflex action · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) an automatic instinctive unlearned reaction to a stimulus. Synonyms: reflex, reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction. · · Noun Definition 1 Synonyms · · · reflex · · Synonym 1 reflex response · · Synonym 2 instinctive reflex · · Synonym 3 innate reflex · · Synonym 4 inborn reflex · · Synonym 5 unconditioned reflex · · Synonym 6 physiological reaction · · Synonym 7 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 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 x latin small letter x U+0078