disappoint

As a verb disappoint

is to displease by eg underperforming or disappoint can be (internet slang).

As an adjective false is

(label) one of two states of a boolean variable; logic.

As an adjective desparate

is .

As a verb disappoint is

to displease by eg underperforming or disappoint can be (internet slang).

As verbs the difference between disgust and disappoint

is that disgust is to cause an intense dislike for something while disappoint is to displease by eg underperforming or disappoint can be (internet slang).

As a noun disgust

is an intense dislike or loathing someone feels for something bad or nasty.

As a verb disappoint

is to displease by eg underperforming or disappoint can be (internet slang).

As an adjective regrettable is

of an event, action, or state, allowing or deserving regret.

As verbs the difference between disgruntle and disappoint

is that disgruntle is to make discontent or cross; to cause being in a bad temper while disappoint is to displease by eg underperforming or disappoint can be (internet slang).

As verbs the difference between dispair and disappoint

is that dispair is to separate (a pair) while disappoint is to displease by eg underperforming or disappoint can be (internet slang).

As a verb disappoint

is to displease by eg underperforming or disappoint can be (internet slang).

As an adjective undefined is

lacking a definition or value.

As verbs the difference between distress and disappoint

is that distress is to cause strain or anxiety to someone while disappoint is to displease by eg underperforming or disappoint can be (internet slang).

As a noun distress

is (cause of) discomfort.

As verbs the difference between evoke and disappoint

is that evoke is to cause the manifestation of something (emotion, picture, etc) in someone's mind or imagination while disappoint is to displease by eg underperforming or disappoint can be (internet slang).

As an adjective poignant

is (obsolete|of a weapon etc) sharp-pointed; keen.

As a verb disappoint is

to displease by eg underperforming or disappoint can be (internet slang).