Disappoint
Let down
Synonyms Let down, dash the hopes of, dispirit, upset, depress, dampen the spirits of, disillusion, dissatisfy, chagrin, bum out, fail, dishearten, discourage, dismay, sadden, disenchant, shatter the illusions of, disgruntle, and fall short (of expectations).
Thwart
Synonyms Thwart, balk, dash, baffle, nip in the bud, obstruct, impede, stymie, frustrate, foil, defeat, put a/the damper on, hinder, hamper, interfere with, and throw cold water on.
Example Sentences
I don’t want to disappoint you.
He will disappoint his supporters today.
They fear to disappoint their parents.
She tried not to disappoint anyone.