List of disappointed synonyms and disappointed related words.
against, baffled, balked, beefing, bellyaching, betrayed, bilked, bitching, blase, blasted, blighted, chapfallen, complaining, complaintful, con, crabbing, crabby, cranky, crestfallen, croaking, crossed, crushed, dashed, defeated, dejected, disabused, disapprobatory, disapproving, discontented, discouraged, disenchanted, disgruntled, disheartened, dished, disillusioned, displeased, dissatisfied, dissenting, downcast, downhearted, enlightened, envious, failed, faultfinding, foiled, frustrated, griping, grouchy, grousing, growling, grumbling, ill done-by, ill-served, indignant, let down, low, malcontent, malcontented, murmuring, muttering, opposed, opposing, out of countenance, out of humor, peevish, petulant, poor, put straight, querulant, querulous, rebellious, regretful, resentful, restive, restless, robbed of illusion, saddened, set right, sophisticated, sorely disappointed, soured, sulky, thwarted, turned-off, unaccepting, unaccommodating, unappreciative, unapproving, uncharmed, uncomplimentary, undeceived, undone, uneasy, unfavorable, unfulfilled, ungratified, unhappy, unsatisfied, unspelled, whiny