The phrase "incalculable loss" means a loss that is impossible to measure or calculate because it is so large, valuable, or significant. Full definition
The group also issued a strong statement protesting vehemently against bad economic policies of the Buhari administration and corruption which have brought untold hardship on Nigerians which has resulted in incalculable losses, shutting down of businesses, increased in crime and criminality etc.. (ghanapoliticsonline.com)
As the people who remain in this broken city attempt to come to terms with the catastrophe that engulfed them a week ago, religion is offering a degree of solace for some of those who have suffered incalculable losses. (religion.blogs.cnn.com)
Such a loss of intellectual capacity too is an incalculable loss to national potential. (infactcanada.ca)