Regretfully in spanish
Con pesar
pronunciation: koʊnpesɑɹ̩ part of speech: adverb
pronunciation: koʊnpesɑɹ̩ part of speech: adverb
In gestures
regretfully = lamentablemente.
Example: In the library I used to work at, they recently -- and regretfully -- discarded the card catalogs.