Antonyms of adj heartsick

2 senses of heartsick

Sense 1
brokenhearted, heartbroken, heartsick -- (full of sorrow)

INDIRECT (VIA sorrowful) -> joyful -- (full of or producing joy; "make a joyful noise"; "a joyful occasion")

Sense 2
despondent, heartsick -- (without or almost without hope; "despondent about his failure"; "too heartsick to fight back")

INDIRECT (VIA hopeless) -> hopeful -- (having or manifesting hope; "a line of people hopeful of obtaining tickets"; "found a hopeful way of attacking the problem")

Similarity of adj heartsick

2 senses of heartsick

Sense 1
brokenhearted, heartbroken, heartsick -- (full of sorrow)
       => sorrowful (vs. joyful) -- (experiencing or marked by or expressing sorrow especially that associated with irreparable loss; "sorrowful widows"; "a sorrowful tale of death and despair"; "sorrowful news"; "even in laughter the heart is sorrowful"- Proverbs 14:13)

Sense 2
despondent, heartsick -- (without or almost without hope; "despondent about his failure"; "too heartsick to fight back")
       => hopeless (vs. hopeful) -- (without hope because there seems to be no possibility of comfort or success; "in an agony of hopeless grief"; "with a hopeless sigh he sat down")