(bound form) disappointed; regretful; upset; despairing

Used as a suffix after an adjective or adverb to describe a state or manner, similar to the English suffix "-ly".

to seem; to appear to; to be like; to look as if

(bound form) to fail to meet a goal or desire; to be disappointed (as in 失望 shī​wàng or 失意 shī​yì)