Today I will tell you the difference between kirei（きれい） and utsukushi（うつくしい）.
These words have similar meaning
But it is different in deeply meaning.
So I will tell you why
Kirei means clean, beautiful,neat.
The word express the beauty of the appearance.
while utsukushi means beautiful,artistically.
Certainly it means the beauty of the appearance.
But there is no meaning like clean.
So It express more deeply beauty like mind thinking.
For example,you can say “the room is kirei.”
But we don’t say “the room is utsukushi.”
Because perhaps the room is clean.
But the room is not beautiful for the mind.
I mean the room won’t catch your mind.
But there is an exception.
It is if the room has really beautiful ornaments.
Then the room can catch your mind.
So then you can say “the room is utsukushi.”
in resume: the kirei can express the appearance beauty But the utsukushi can express the beauty something can catch heart
the way to write in kanji