IPA: /aɪˈrɒnɪkəl.nəs/
KK: /aɪˈrɒnɪkəlnəs/
The quality of expressing something in a way that means the opposite of what is said, often in a humorous or sarcastic manner.
Her ironicalness made it hard to tell if she was being serious or joking.
Ironicalness → It is formed from "ironic" (from Greek "eironeia", meaning dissimulation or feigned ignorance) and the suffix "-ness" (meaning the state or quality of). The word "ironicalness" refers to the quality or state of being ironic.
Think of the quality of being 'feigned' or 'dissimulated' — that's what 'ironicalness' means, the state of being ironic.