having beauty; pleasing to the senses or to the mind
a beautiful woman/face/baby/voice/poem/smell/evening
beautiful countryside/weather/music
She looked stunningly beautiful that night.
What a beautiful thing to say!
You have already received an excellent answer from the moderator. May I add something that might interest you?
Normally we use an adverb after a verb. However, after some verbs such as [i]be, feel, look, seem, sound, taste, smell, appear[/i] and others we often use an adjective. The verbs are called 'linking verbs' (aka 'copular/copula verbs').
This food tastes delicious.
The children feel happy.
The weather became cold.