adjective causing someone to feel sad or displeased because something did not happen as expected or because something was not as good as expected
A disappointing grade on a test can be a motivator to study harder next time.
Being let down by a friend can be a disappointing betrayal of trust.
Losing a game in the final seconds can be a disappointing outcome for the team.
Receiving poor service at a restaurant can result in a disappointing dining experience.
A disappointing movie can leave viewers feeling let down by the hype.
In a professional context, a writer may use 'disappointing' to describe a negative review of their work or a lackluster response from readers.
A psychologist may use 'disappointing' to refer to a client's lack of progress in therapy or a setback in their treatment plan.
A salesperson may use 'disappointing' to describe a failed sales pitch or a low number of sales for a particular product.
A teacher may use 'disappointing' to describe a student's poor performance on a test or assignment.
A manager may use 'disappointing' to refer to a team's failure to meet a project deadline or achieve a set goal.