Suppose that there are a mistake.
That correct word is - однократное
it means smthing that equal with "one"
but usually in spoken language we use this word in negative form - неоднократное, неоднократно etc...
F.e.:
1. Я неоднократно говорил тебе об этом - it means that I told you about something more than one time.
2. Неоднократно повторяющееся действие. It means the action that is repeated and repeated more than one time.