unrepeatable russian
неповтори́мый
unique, inimitable, one-of-a-kind
unrepeatable, that will never come again
неудобопроизноси́мый
unpronounceable, unrepeatable, not in polite use
unique, inimitable, one-of-a-kind
unrepeatable, that will never come again
unpronounceable, unrepeatable, not in polite use