Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb disappoint

1 sense of disappoint

Sense 1
disappoint, let down -- (fail to meet the hopes or expectations of; "Her boyfriend let her down when he did not propose marriage")
       => thwart, queer, spoil, scotch, foil, cross, frustrate, baffle, bilk -- (hinder or prevent (the efforts, plans, or desires) of; "What ultimately frustrated every challenger was Ruth's amazing September surge"; "foil your opponent")

Antonyms of adj disappointing

1 sense of disappointing

Sense 1
disappointing, dissatisfactory, unsatisfying -- (not up to expectations; "a disappointing performance from one who had seemed so promising")

INDIRECT (VIA unsatisfactory) -> satisfactory -- (giving satisfaction; "satisfactory living conditions"; "his grades were satisfactory")

Similarity of adj disappointing

1 sense of disappointing

Sense 1
disappointing, dissatisfactory, unsatisfying -- (not up to expectations; "a disappointing performance from one who had seemed so promising")
       => unsatisfactory (vs. satisfactory) -- (not giving satisfaction; "shops should take back unsatisfactory goods"; "her performance proved to be unsatisfactory"; "life is becoming increasingly unsatifactory"; "our discussion was very unsatisfactory")

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