WASTEFULNESS
waste, wastefulness, dissipation
(noun) 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”
thriftlessness, waste, wastefulness
(noun) the trait of wasting resources; “a life characterized by thriftlessness and waste”; “the wastefulness of missed opportunities”
Source: WordNet® 3.1
Etymology
Noun
wastefulness (countable and uncountable, plural wastefulnesses)
imprudent or excessive expenditure or the waste of resources
Source: Wiktionary