Table of Contents POS
HYPHEN
WORDNET DICTIONARY
OXFORD DICTIONARY
THESAURUS
ROGET THESAURUS

WORDNET DICTIONARY

Noun disappointment has 2 senses

• disappointment(n = noun.feeling) letdown - a feeling of dissatisfaction that results when your expectations are not realized; "his hopes were so high he was doomed to disappointment"
is a kind of dissatisfaction
has particulars: defeat, frustration
Derived form verb disappoint₁

• disappointment(n = noun.act) dashing hopes - an act (or failure to act) that disappoints someone; Array
is a kind of failure
Derived form verb disappoint₁

OXFORD DICTIONARY

THESAURUS

disappointment

Faustianism, awakening, ban, blackball, blackballing, blighted hope, blow, calamity, chagrin, cold comfort, complaint, dashed hopes, debunking, defeat, dejection, depression, dim view, disagreement, disapprobation, disapproval, disaster, discontent, discontentedness, discontentment, discouragement, disenchantment, disesteem, disfavor, disgruntlement, disillusion, disillusionment, displeasure, disrespect, dissatisfaction, dissatisfiedness, dissent, distaste, distress, divine discontent, enlightenment, envy, exclusion, failure, fiasco, fizzle, frustration, hope deferred, ill humor, indignation, low estimation, low opinion, mortification, objection, opposition, opposure, ostracism, peevishness, petulance, protest, querulousness, rebelliousness, regret, rejection, resentment, restiveness, restlessness, return to reality, rude awakening, sourness, sulkiness, thumbs-down, undeception, uneasiness, unfulfillment, unhappiness, unpleasure, unsatisfaction, unspelling, vexation of spirit

ROGET THESAURUS

disappointment

Discontent

N discontent, discontentment, dissatisfaction, dissent, disappointment, mortification, cold comfort, regret, repining, taking on, heart-burning, heart-grief, querulousness, hypercriticism, inquietude, vexation of spirit, soreness, worry, concern, fear, malcontent, grumbler, growler, croaker, dissident, dissenter, laudator temporis acti, censurer, complainer, fault-finder, murmerer, cave of Adullam, indignation meeting, winter of our discontent, with what I most enjoy contented least, discontented, dissatisfied, unsatisfied, ungratified, dissident, dissentient, malcontent, malcontented, exigent, exacting, hypercritical, repining, regretful, down in the mouth, in high dudgeon, in a fume, in the sulks, in the dumps, in bad humor, glum, sulky, sour as a crab, soured, sore, out of humor, out of temper, disappointing, unsatisfactory, frustrated (failure), Int, so much the worse!, that won't do, that will never do, it will never do, curtae nescio quid semper abest rei, ne Jupiter Quidem omnibus placet, poor in abundance, famished at a feast.

Disappointment

N disappointment, blighted hope, balk, blow, anticlimax, slip 'twixt cup and lip, nonfulfillment of one's hopes, sad disappointment, bitter disappointment, trick of fortune, afterclap, false expectation, vain expectation, miscalculation, fool's paradise, much cry and little wool, disappointed, disconcerted, aghast, disgruntled, out of one's reckoning, the mountain labored and brought forth a mouse, parturiunt montes, nascitur ridiculus mus, diis aliter visum, the bubble burst, one's countenance falling.

For further exploring for "disappointment" in Webster Dictionary Online