unrepeatable
Concise Oxford English Dictionary © 2008 Oxford University Press:
unrepeatable/ʌnrɪˈpiːtəbl/
▶adjective
- 1 not able to be repeated.
- 2 too offensive or shocking to be said again.
– derivatives
unrepeatability noun.
unrepeatability noun.
'unrepeatable' also found in these Oxford entries:

