You can use 最中（に）as follows:

> NOUN ＋ の ＋ 最中（に）
>
> V ている ＋ 最中（に）

Why can we not use 最中(に) preceded by an adjective? Can anyone provide me with
a grammatical reason for this?
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2019-06-29T09:46:25.943
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2019-06-30T19:41:25.017
2020-06-17T08:18:27.500
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question
adjectives
Why can't 最中(に) be preceded by an adjective? (Adj. + 最中(に) )
For example, you can say 信号が赤い間 ("while the traffic light is red"), but you
cannot say ❌信号が赤い最中.

I think this is because 最中 ("(in) the midst of ～") is used only with events or
actions that has a start/end and evolves/progresses over time. The basic role
of an adjective is to describe a static quality that does not change for some
time, so it does not go well with 最中. I think "in the midst of red(ness)" does
not make much sense in English, either. But you can say something like
葉がだんだん赤くなる最中, because だんだん赤くなる ("to turn red gradually") is an action that
progresses over time.
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2019-06-29T13:36:50.483
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2019-06-29T13:36:50.483
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answer