Impétueux.
ETYM Old Eng. ardaunt, French ardant, p. pr. of arder to burn, from Latin ardere.
1. Characterized by intense emotion; SYN. burning, fervent, fervid, fiery, impassioned, perfervid, torrid.
2. Characterized by strong enthusiasm; SYN. warm.
3. Glowing or shining like fire.