nonnecessity

noun
non·​ne·​ces·​si·​ty | \ ˌnän-ni-ˈse-sə-tē How to pronounce nonnecessity (audio) , -ˈse-stē\
plural nonnecessities

Definition of nonnecessity

1 : the condition of not being necessary … the issues being raised go well beyong legalities underlying the necessity or nonnecessity for an environmental impact statement.Chemical and Engineering News
2 : something that is not a necessity : something inessential or unnecessary … I had no intimation that … the government would permit shipment of such nonnecessities.— Neil G. Carey

First Known Use of nonnecessity

1593, in the meaning defined at sense 1

Keep scrolling for more