Definition of "regretfully" []

• In a regretful manner, with regret. (adverb)
• Unfortunately, in a manner inspiring or deserving regret; used only as a sentence adverb (to introduce and modify an entire sentence). (adverb)

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• "MR. JACKMAN: As a substitute for our President, who regretfully is absent in Chicago, I was given a biographical summary of our guest speaker today."
• "He fingered the coin regretfully and laid it on the counter with"
• "It's obvious that you continue to come here for some sort of validation; regretfully, that is something that I'm no longer willing to offer you."