

Сегодня счастливый день!
Today is a happy day!
Почему у тебя такой счастливый вид?
Why do you look so happy?
Мой дедушка — счастливый человек.
My grandfather is a happy man.
"счастливый" is in the lesson "Adjectives 2" (Level 4), along with 17 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.