a. | 1. | Rushing with force and violence; moving with impetus; furious; forcible; violent; |
2. | Vehement in feeling; hasty; passionate; violent; |
Adj. | 1. | impetuous - characterized by undue haste and lack of thought or deliberation; "a hotheaded decision"; "liable to such impulsive acts as hugging strangers"; "an impetuous display of spending and gambling"; "madcap escapades"; (`brainish' is archaic) |
2. | impetuous - marked by violent force; "impetuous heaving waves" |