Definition of "frightfully" []

• In a frightful manner. (adverb)
• Very, extremely. (adverb)

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• "She, too, was in debt; "frightfully," her husband had used the right word;"
• "Their outlook towards a venomous German attempt to do something "frightfully" nasty, is very similar to a large and powerful nurse dealing with a fractious child -- sort of: "Now, then, Master Frankie, you mustn't kick and scream like that.""
• "Lots of them, of course, were frightfully swell (Betty annexed "frightfully" at school, by the by) and had all sorts of clothes; but Betty was perfectly content with her modest outfit, and none of the other girls seemed to mind how she dressed."