Aid workers have said that an offensive risks a humanitariancatastrophe.
Times, Sunday Times (2012)
The destruction of Hiroshima and Nagasaki was a humanitariancatastrophe whose effects, in lingering deaths from radiation sickness, were felt for decades.
Times, Sunday Times (2013)
The soldiers advanced along the beach from north and south, defying warnings of a humanitariancatastrophe and international appeals for a ceasefire to allow the civilians to escape.
Times, Sunday Times (2009)
Definition of 'catastrophe'
catastrophe
(kətæstrəfi)Explore 'catastrophe' in the dictionary
countable noun
A catastrophe is an unexpected event that causes great suffering or damage.
Definition of 'humanitarian'
humanitarian
(hjuːmænɪteəriən)Explore 'humanitarian' in the dictionary
adjective [usually ADJECTIVE noun]
If a person or society has humanitarian ideas or behaviour, they try to avoid making people suffer or they help people who are suffering.
A humanitarian is someone with humanitarian ideas.