憾 regrettable

It's regrettable that the human heart is so emotional, said Mr. Spock.

aaah shit! ★☆☆☆☆ F
遺 (bequeath) + 憾 (regrettable) = 遺憾! (aaah shit!)

a fairly formal way to say, "Aaaah shiit!!" Really really regrettable, deplorable. Only use this about some big thing - North Koreans kidnapping people, or that time you accidentally wiped your nose with the Emperor's tie.