- Dishearten is defined as to discourage or cause the loss of hope.
An example of to dishearten is to tell a person that he will never fulfill his dreams.
transitive verbdis·heart·ened, dis·heart·en·ing, dis·heart·ens
(third-person singular simple present disheartens, present participle disheartening, simple past and past participle disheartened)
dis- + hearten