hit-and-miss
01
一貫性のない, 予測不可能な
an inconsistent and unpredictable approach or method with no clear pattern of success or failure
例
The quality of his work is hit-and-miss, so I ’m not sure whether to hire him again.
彼の仕事の質は当たり外れなので、再雇用するかどうかわかりません。
