When big changes are made, they come without priorwarning and seemingly without a compelling need - for instance, another huge upheaval of health service bureaucracy.
Times, Sunday Times (2011)
Care home inspections should be allowed without priorwarning at any time.
The Sun (2012)
No point giving him priorwarning.
The Sun (2006)
Definition of 'warning'
warning
(wɔːʳnɪŋ)Explore 'warning' in the dictionary
variable noun [oft withoutN]
A warning is an advance notice of something that will happen, often something unpleasant or dangerous.