Noun. Mid-17th - early 18th century.
[from ANT- + APOLOGY noun]
A reply to an apology.
If you apologised to someone for not antapologising to their apology, what would their reply to that apology be?
Yet another glaring omission in the English language has been discovered by Lexicolatry. These are the things that keep an anorak like me awake at night.
Do leave any suggestions in the comment box below.