We don't have synonyms for happie yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are hippie, happi and nappie.
(adj) :
Obsolete spelling of happy. [Having a feeling arising from a consciousness of well-being or of enjoyment; enjoying good of any kind, such as comfort, peace, or tranquillity; blissful, contented, joyous.]
(adj) :
Obsolete spelling of happy. [Having a feeling arising from a consciousness of well-being or of enjoyment; enjoying good of any kind, such as comfort, peace, or tranquillity; blissful, contented, joyous.]