Synonyms of 'incorrigible'
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You use hopeless to emphasize how bad or inadequate something or someone is.
a hopeless mess
How can we reduce the influence of intractable opponents?
Thesaurus for incorrigible from the Collins English Thesaurus
If you tell someone they are incorrigible , you are saying , often in a humorous way, that they have faults which will never change.