ADJ-GRADED (思想)不清楚的，不坚定的，糊涂的 If you say that someone is wishy-washy, you are critical of them because their ideas are not firm or clear. (思想)不清楚的，不坚定的，糊涂的 [informal, disapproval]
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If there's anything I can't stand it's an indecisive, wishy-washy customer.
如果说我有什么不能容忍的话，那就是犹犹豫豫、挑来挑去的客户。
SYN feeble, weak, bland, ineffective