If something is worthwhile, it means your time and money are not being wasted. For example, studying another language is a worthwhile investment.

It means it is worthy of your time, money, or whatever. Think of it as "worth your while". Examples: *Contact lenses are a worthwhile purchase. They will really enhance your quality of life. *Savings bonds are a worthwhile investment. There is little risk involved. *Rayman is a worthwhile video game. It is fun and educational.

http://www.shabdkosh.com/translate/worthwhile/worthwhile_meaning_in_Hindi_English Link :)

worthwhile = valuable ,rewarding, beneficial, profitable *Worthwhile to contribute. *These activities are intrinsically worthwhile, and are distinct from those driven by necessity. *Would you like to enhance your CV & do something worthwhile at the same time? *Worthwhile endeavor.