definition of
wastefulness

[1] #1 wastefulness n. [thriftlessness, waste] the trait of wasting resources; "a life characterized by thriftlessness and waste"; "the wastefulness of missed opportunities". wn

[2] #2 wastefulness n. [waste, dissipation] useless or profitless activity; using or expending or consuming thoughtlessly or carelessly; "if the effort brings no compensating gain it is a waste"; "mindless dissipation of natural resources". wn