This is the 2110th most frequent German word.
überaus
"Überaus" means "extremely" or "exceedingly" in English.
The word "überaus" here intensifies the adjective "glücklich," conveying a very high degree of happiness.
Sie ist überaus glücklich mit ihrer neuen Arbeit.
She is extremely happy with her new job.
"Überaus" serves as an adverb accentuating the excitement and engagement conveyed by "spannend."
Das Buch war überaus spannend und fesselnd zu lesen.
The book was extremely thrilling and captivating to read.
In this example, "überaus" underscores the depth of gratitude expressed by "dankbar."