Open English Wordnet
Nouns
(n)tearawaya reckless and impetuous person Adjectives
(s)hotheaded, impulsive, impetuous, madcap, tearaway, brainishcharacterized 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 escapade”