赤い

赤い

Red.

Here, '赤い' ('akai') describes the flower's color, emphasizing its beautiful appearance.

この赤い花はとても美しいです。

This red flower is very beautiful.

In this sentence, '赤い' ('akai') is used to modify the noun '車' ('kuruma'), specifying its color as red.

彼は赤い車を買いました。

He bought a red car.

Here, '赤い' is transformed into '赤く' ('akaku') as an adverb describing how the sky was dyed by the sunset.

夕焼けが空を赤く染めました。

The sunset dyed the sky red.