Antonyms of verb dishearten

1 sense of dishearten

Sense 1
dishearten, put off -- (take away the enthusiasm of)
       Antonym of hearten (Sense 1)
      => cheer, hearten, recreate, embolden -- (give encouragement to)

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

1 sense of dishearten

Sense 1
dishearten, put off -- (take away the enthusiasm of)
       => discourage -- (deprive of courage or hope; take away hope from; cause to feel discouraged)

Antonyms of adj disheartened

1 sense of disheartened

Sense 1
demoralized, demoralised, discouraged, disheartened -- (made less hopeful or enthusiastic; "desperate demoralized people looking for work"; "felt discouraged by the magnitude of the problem"; "the disheartened instructor tried vainly to arouse their interest")

INDIRECT (VIA pessimistic) -> optimistic -- (expecting the best in this best of all possible worlds; "in an optimistic mood"; "optimistic plans"; "took an optimistic view")

Similarity of adj disheartened

1 sense of disheartened

Sense 1
demoralized, demoralised, discouraged, disheartened -- (made less hopeful or enthusiastic; "desperate demoralized people looking for work"; "felt discouraged by the magnitude of the problem"; "the disheartened instructor tried vainly to arouse their interest")
       => pessimistic (vs. optimistic) -- (expecting the worst possible outcome)