frightfullyfright‧ful‧ly /ˈfraɪtfəli/ adverb British English old-fashioned

- Lawrence was so frightfully strict with the children.
- But the truth was that my mental processes were frightfully complicated, tenaciously mixed.
- Conversation stopped and everyone became frightfully solicitous.
- I always felt frightfully embarrassed and equally sad about this.
- It's on at the Lyceum and is supposed to be frightfully good.
- It is a frightfully difficult answer.
- My goodness, Clara, how frightfully boring for you, how can you bear to listen to us.
- Nearly all the men in the hollow were wounded, one man frightfully so, his arm being cut short off.
adjectivefrightenedfrighteningfrightfulnounfrightfrightenersadverbfrighteninglyfrightfullyverbfrighten