worthwhile

 
Pronunciation: /wəːθˈwʌɪl/

adjective

  • worth the time, money, or effort spent; of value or importance: extra lighting would make a worthwhile contribution to road safety

Derivatives

worthwhileness

noun

When the adjective worthwhile is used attributively (i.e. before the noun) it is always written as one word: a worthwhile cause. However, when it is used predicatively (i.e. it stands alone and comes after the verb) it may be written as either one or two words: we didn’t think it was worthwhile/worth while.