Comparative form of frosty: more frosty(adjective)
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Use "frostier" in a sentence
"On January 19th the Chinese foreign ministry, in language that recalled frostier times in bilateral relations, said a "proper" handling of the dispute was crucial to relations between China and Japan as well as to regional stability."
"So when President Hu Jintao visits the U.S. this week, the reception likely will be frostier than usual."
"The tone of the Liverpool manager's conversations with Javier Mascherano appears to have been somewhat frostier, however."