adverb[as submodifier] • dated
- Very (used for emphasis): it was frightfully hot I’m frightfully sorryMore example sentences
- My muscles are still frightfully sore, but they are looser then yesterday.
- The number of people who decided whether or not our song would be played was frightfully small.
- Everyone thought that was frightfully romantic!
More definitions of frightfullyDefinition of frightfully in:
- The US English dictionary