Difference between Disappointment and Letdown

DISAPPOINTMENT vs LETDOWN: NOUN

The emotion felt when a strongly held expectation is not met.
That which disappoints.
The act of disappointing, or the state of being disappointed; defeat or failure of expectation or hope; miscarriage of design or plan; frustration.
The state of being disappointed or defeated in the realization of one's expectation or intention in regard to some matter, or the resulting feeling of depression, mortification, or vexation.
Defeat or failure of expectation, hope, wish, desire, or intention; miscarriage of design or plan: as, he has had many disappointments in life.
One that disappoints.
The condition or feeling of being disappointed.
The act of disappointing.
A feeling of dissatisfaction that results when your expectations are not realized
An act (or failure to act) that disappoints someone

Alternative form of let-down.
A physiological response in lactating females, activated usually in response to sucking or crying by an infant, in which milk previously secreted into the alveoli of the breasts is released into the ducts that lead to the nipple.
The descent made by an aircraft in order to land.
A disappointment.
A decrease, decline, or relaxation, as of effort or energy.
A feeling of dissatisfaction that results when your expectations are not realized

Sorrow, Disillusionment, Disappointed, Bitterness, Displeasure, Dissatisfaction, Disgust, Sadness, Regret, Unhappiness, Dismay, Frustration, Dashing hopes, Letdown, Disappointing

Sluggishness, Misstep, Debacle, Heartbreak, Anticlimax, Loss, Embarrassment, Yawner, Hangover, Heartbreaker, Shocker, Setback, Bummer, Slump, Disappointment

Grief, Disillusion, Despair, Setback, Sorrow, Disillusionment, Disappointed, Displeasure, Disgust, Sadness, Regret, Unhappiness, Dismay, Frustration, Disappointing

Hiccup, Stinker, Blowout, Sluggishness, Misstep, Debacle, Heartbreak, Anticlimax, Loss, Embarrassment, Hangover, Heartbreaker, Setback, Bummer, Slump

What a disappointment to lose that wholesale site.
You will not be disappointment with your purchase!
Despite my disappointment Im so pumped for February!
We apologise for any disappointment or inconvenience caused!
Volker probably proved a bigger disappointment to Republicans.
Otherwise, you will set yourself up for disappointment.
These relationships always lead to disappointment which tacks on not only the disappointment of needs unmet presently, but of their unmet needs from childhood.
Sample Letters Of Disappointment Disappointment is dissatisfaction, caused by an act or a happening that is lower than expectation.
Not tears of her own disappointment, but the disappointment of others.
There was disappointment burning in her that she could not quite analyze, the disappointment of a child seeing illusions crumble.