English

Adverb

fully well ‎(not comparable)

1. Alternative form of full well

Usage notes

In ordinary modern English, adverbs modify adverbs, so the phrase fully well would be standard. However, the phrase full well, a surviving usage of full itself as an adverb, is more common than fully well, which is sometimes considered incorrect or a hypercorrection. This is most often used to modify the verb to know.

References

• Brians, Paul. Common Errors in English Usage. Williams, James Co. 2009.