As a noun ommission is
.
negilgence
Not English
Negilgence has no English definition. It may be misspelled.
English words similar to 'negilgence':
negligence,
negligible,
nucleoside,
neosilicate,
nucleosome,
neglectable,
nickelocene,
niclosamide,
noiselike,
neglectee,
neglective,
nooselike,
nickelize