tone deafness tone-deaf • tone down · · · Info · Definitions · Synonyms · Characters · · tone deafness · · Text Common · · Latin · · Scripts 13 · · Length 3 · · Syllables Definitions · · · (noun) an inability to distinguish differences in pitch. Synonyms: tone deafness, tin ear. · · Noun Definition 1 Synonyms · · · tin ear · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 f latin small letter f U+0066 n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074