unrealistic
🇺🇸
/ˌʌnriːəˈlɪstɪk/
🇬🇧
/ˌʌnrɪəˈlɪstɪk/
adjective
R
not based on what is real or possible
His plan to become a millionaire in one month is unrealistic.
彼が1ヶ月で億万長者になる計画は非現実的です。
translation
非現実的な