Undefinable
a. 不能下定义的, 不确定的
✅ 同义词
🗣️ 情景例句
You don't have a leg to stand on.
你的观点不值一驳。
I don't remember where I was then.
我不记得那时我在哪里。
The salvage operation had been a complete failure.
打捞工作彻底失败了。