Plural of disacknowledgement; multiple instances or cases of refusing to acknowledge something.
Simple plural form of disacknowledgement, created by adding -s. In English, most nouns form plurals this way.
Using the plural here suggests there could be multiple instances of denial—like a series of refusals to recognize different things, which sounds pretty emphatic and deliberate.
Complete word intelligence in one call. Free tier — 50 lookups/day.