From Longman Dictionary of Contemporary Englishnugatorynu‧ga‧to‧ry /ˈnjuːɡətəri $ ˈnuːɡətɔːri/ adjective formal having no value
Examples from the Corpus
nugatory• Social custom made this proviso almost nugatory.• They were not particularly inspiring, though Michael van der Plas has shown that neither were they nugatory.• However, that sort of reference was nugatory because the money did not follow the patient. 