Englishpainfully
adverb
the whole affair had been painfully embarrassing:
distressingly, worryingly, upsettingly, disturbingly, sadly, pitifully, unfortunately, agonizingly, harrowingly, excruciatingly, chillingly, alarmingly, insufferably, unendurably, unbearably, torturously, cruelly, uncomfortably, embarrassingly, disconcertingly, unenviably, unpleasantly;
woefully, dreadfully, terribly, awfully, horribly;
dated frightfully.
painfully Oxford Dictionary of English