What is the meaning of "šťasten" ?
What is the meaning of "šťasten" in the following sentence?

Má-li někdo rád květinu, jedinou tohoto druhu na miliónech a miliónech hvězd, stačí mu, aby byl šťasten, když se na hvězdy dívá.

What is the dictionary form of "šťasten"?

Question

What is the meaning of "šťasten" ?
What is the meaning of "šťasten" in the following sentence?

Má-li někdo rád květinu, jedinou tohoto druhu na miliónech a miliónech hvězd, stačí mu, aby byl šťasten, když se na hvězdy dívá.

What is the dictionary form of "šťasten"?

Answer

You can find it in the dictionary under "šťastný" ("happy"). This form of the adjective (short form / jmenný tvar) is mostly restricted to formal language, though one notable exception is rád/ráda ect., which only has a short form.

Other examples: 
mladý - mlád
hotový - hotov