the absence of a reward or compensation

इनाम या मुआवजे की अनुपस्थिति

English Usage: His efforts seemed rewardless, as he received no acknowledgment.

Hindi Usage: उसका प्रयास इनाम रहित प्रतीत हुआ, क्योंकि उसे कोई मान्यता नहीं मिली।