Impetuous
IMPET'UOUS, adjective [Latin impetuosus, from impetus, impeto; in and peto, to urge, to rush. See Bid.]
1. Rushing with great force and violence; moving rapidly; furious; forcible; fierce; raging; as an impetuous wind; an impetuous torrent.
2. Vehement of mind; fierce; hasty; passionate; violent; as a man of impetuous temper.