impetuous(adjective satellite) 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)
(adjective satellite) marked by violent force; "impetuous heaving waves"
Source:
WordNet 2.0 Copyright 2003 by Princeton University. All rights reserved.
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