This is the 12733rd most frequent Russian word.
красивым
"Красивым" means "beautiful" (in instrumental or masculine singular forms).
The word "красивым" is used to describe the visual splendor or pleasing appearance of the sunset.
Закат был особенно красивым в тот вечер.
The sunset was especially beautiful that evening.
The word "красивым" describes the aesthetic or moral quality of the action, indicating it was admirable and splendid.
Его поступок был красивым и достойным уважения.
His act was beautiful and worthy of respect.
The word "красивой" describes the state or appearance of the person, indicating she looked visually appealing.