Synonyms of heartier

1 Syllable
gay, frank, glad, true, warm, deep, real
2 Syllables
earnest, genial, avid, jovial, cheerful, honest, gushing, ardent, zealous, devout, cordial, deepest, heartfelt, friendly, deep-felt, eager, cheery, jolly
3 Syllables
generous, warmhearted, ebullient, intense, unfeigned, profuse, vivacious, sincere, neighborly, back-slapping, affable, genuine
4 Syllables
impassioned, exuberant, unreserved, passionate, responsive, wholehearted, unrestrained, animated, effusive