अपूरणीय (en. Irreplaceable)

Coral reefs provide irreplaceable sources of food and shelter to many fish species, including juvenile fish.

This is an irreplaceable loss for the nation.

Atal Ji's passing away is a personal and irreplaceable loss for me.

In the presence of a large area, automatic watering is simply irreplaceable, because it is almost impossible to irrigate on your own, otherwise it will take too much time.

Among the losses were many irreplaceable manuscripts, including much of Carey's translation of Sanskrit literature and a polyglot dictionary of Sanskrit and related languages, which would have been a seminal philological work had it been completed.

RA copper foil’s special features make it irreplaceable for most of electronic requirements acted as thermal conductive, electricity conductive, EMI/EMC or some other functions.

In order to be irreplaceable one must always be different - Coco Chanel.