Adjective disappointed has 1 sense
  1. defeated, disappointed, discomfited, foiled, frustrated, thwarted - disappointingly unsuccessful; "disappointed expectations and thwarted ambitions"; "their foiled attempt to capture Calais"; "many frustrated poets end as pipe-smoking teachers"; "his best efforts were thwarted"
    Antonym: successful (indirect, via unsuccessful)
,Verb disappoint has 1 sense
  1. disappoint, let down - fail to meet the hopes or expectations of; "Her boyfriend let her down when he did not propose marriage"
    --1 is one way to thwart, queer, spoil, scotch, foil, cross, frustrate, baffle, bilk
    Derived forms: noun disappointment1, noun disappointment2
    Sample sentences:
    The performance is likely to disappoint Sue
    The bad news will disappoint him