indecipherable
🇺🇸
/ˌɪndɪˈsaɪfrəbl/
🇬🇧
/ˌɪndɪˈsaɪfrəbl/
Unable to be read or understood due to being too complex, messy, or coded.
The doctor's handwriting was so messy that the prescription was indecipherable.
医師の書体が非常に汚くて、処方が判読不能でした。