

У тебя сегодня очень радостный вид.
You look very happy today.
Это была действительно радостная новость.
That was really joyful news.
Почему у детей такие радостные лица?
Why do the children have such happy faces?
"радостный" is in the lesson "Positive traits" (Level 28), along with 9 other useful words. LinDuo has 180 topic lessons like this one, 2,380 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.