Antonyms of verb hearten

1 sense of hearten

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

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

1 sense of hearten

Sense 1
cheer, hearten, recreate, embolden -- (give encouragement to)
       => encourage -- (inspire with confidence; give hope or courage to)