nonfunctioning
adjective
non·func·tion·ing
ˌnän-ˈfəŋ(k)-sh(ə-)niŋ
1
: not performing or able to perform a function : not functioning : nonfunctional
a nonfunctioning telephone
a nonfunctioning kidney
2
medical, of a tumor
: not secreting hormones or not secreting hormones that produce clinical symptoms
a nonfunctioning pituitary adenoma
nonfunctioning islet cell tumors
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Merriam-Webster unabridged
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