ଅର୍ଥ : Not likely to be rewarded.
ଉଦାହରଣ :
Grading papers is a thankless task.
ସମକକ୍ଷ : thankless, unappreciated
Ungratifying ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Marathi. Ungratifying ka matlab kya hota hai?