Usage History of 'unsmiling'

The following chart shows how frequently 'unsmiling' appeared in printed materials over time. For example, the word 'unsmiling' occurred 2 times in books in 1720 and 10,524 times in 2008. From 1720 to 2008, the word 'unsmiling' was used a total of 209,980 times in books scanned by Google. See Reference: Google Ngram project.

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