chang4
regretful; upset; despair; depressed

strokes 11
radical
strokes after radical 8
怅怅然 悵悵然 chang4 chang4 ran2
disappointed

怅然 悵然 chang4 ran2
disappointed and frustrated

怅惘 悵惘 chang4 wang3
distracted; listless; in low spirits

惆怅 惆悵 chou2 chang4
melancholy; depression

惆怅若失 惆悵若失 chou2 chang4 ruo4 shi1
to feel despondent (idiom)