Usage History of 'problematical'

The following chart shows how frequently 'problematical' appeared in printed materials over time. For example, the word 'problematical' occurred 2 times in books in 1515 and 23,295 times in 2008. From 1515 to 2008, the word 'problematical' was used a total of 852,287 times in books scanned by Google. See Reference: Google Ngram project.

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