“粗心的”常见英文表达有 careless、negligent、thoughtless 等，具体使用取决于语境和表达侧重点：
careless：最常用，强调做事不细心、粗心大意，可能导致小错误或疏忽。例如：He is always careless in his work, which often leads to mistakes.（他工作总是粗心大意，经常出错。）
negligent：语气较正式，指因疏忽而未尽到应尽的责任，可能带来更严重的后果，常用于法律或正式语境。例如：The doctor was found negligent in his duty.（这位医生被认定在职责上疏忽大意。）
thoughtless：侧重于行为或言语未经思考、不顾及他人感受，带有自私或不考虑后果的意味。例如：It was thoughtless of you to leave the party without saying goodbye.（你不辞而别就离开聚会，真是太粗心了。）