1. Not up to expectations
   "a disappointing performance from one who had seemed so promising"
   - dissatisfactory, unsatisfying

1. Fail to meet the hopes or expectations of
   - let down

See also: disappointingly, disappointment, unsatisfactory

Type of: baffle, bilk, cross, foil, frustrate, queer, scotch, spoil, thwart

Encyclopedia: Disappoint

• sunshine-roof
• sunshiny
• sunspot
• sunstone
• sunstroke
• sunstruck
• sunsuit
• suntan
• suntanned
• suntrap
• sunup
• sunward
• suo moto
• Suomi
• sup
• super
• super acid
• Super Bowl
• super C
• super heavyweight
• super-duper
• superable
• superabound
• superabundance
• superabundant