Synonyms for Fervent (same or very similar meaning)
WordNet sense 1 (characterized by intense emotion):
ardent, burning, fervid, fiery, impassioned, perfervid, torridWordNet sense 2 (having or expressing strong emotions):
passionateWordNet sense 3 (used of physical heat; having a high or higher than desirable temperature or giving off heat or feeling or causing a sensation of heat or burning):
hotFrom the ODE community, based on WordNetadd/edit