confoundedly

From confounded + -ly.

confoundedly (comparative more confoundedly, superlative most confoundedly)

1. In a confounded manner; as if confused or thwarted.
2. (dated, colloquial) Used as a mild oath: damnably.
   • 1773, [Oliver] Goldsmith, She Stoops to Conquer: Or, The Mistakes of a Night. A Comedy. […], London: […] F[rancis] Newbery, […], →OCLC, Act II, page 23:

     I have been thinking, George, of changing our travelling dreſſes in the morning. I am grown confoundedly aſhamed of mine.

3. (dated, colloquial) Very; terribly.
   • 1927, Ernest Bramah, Max Carrados Mysteries:

     That's most confoundedly good of you.