(うつく)しい

うつくしい
adjective (i-adjective)
beautiful
1. beautiful
Having qualities that give great pleasure to the senses or mind. A more literary and formal word for beauty compared to きれい.
(うつく)しい夕日(ゆうひ)です
What a beautiful sunset.
She is a beautiful person.
Japan's nature is beautiful.
I spent the time quietly while listening to beautiful music.
That painting's colors are so beautiful that they move everyone who sees it.

(うつく)しい conjugates as an i-adjective: (うつく)しくない (negative), (うつく)しくて (te-form), (うつく)しかった (past). This is more literary/formal than きれい (which is also used for 'clean'). (うつく)しい has a deeper, more aesthetic connotation and is used in poetry and formal contexts.

Related: (うつく)しさ (うつくしさ - beauty, noun).