important, enjoyable, interesting, etc.; worth spending time, money, or effort onIt was in support of a worthwhile cause (= a charity, etc.)The smile on her face made it all worthwhile.We all felt we had done something worthwhile for the local community. worthwhile for someone to do somethingHigh prices at home make it worthwhile for buyers to look overseas. worthwhile to do somethingIt is worthwhile to include really high-quality illustrations. worthwhile doing somethingIt didn't seem worthwhile writing it all out again.help This word can be written worth while, except when it is used before a noun.