ADJ
（深感怀念的）往昔的，过去的
If you refer to a period in the past as the olden days, you feel affection for it.
例句
We had a delightful time talking about the olden days on his farm.
我们兴高采烈地聊起了在他农场度过的那段往昔时光。
...the nicely painted railways of olden times.
画得很美的旧时铁路