Webster's Revised Unabridged Dictionary · 1913

Impetuous

Impetuous , adjective

[French impetueux, Latin impetuosus. See Impetus.]

1.
Rushing with force and violence; moving with impetus; furious; forcible; violent; as, an impetuous wind; an impetuous torrent.
Went pouring forward with impetuous speed. — Byron
2.
Vehement in feeling; hasty; passionate; violent; as, a man of impetuous temper.
The people, on their holidays, Impetuous, insolent, unquenchable. — Milton