impetuous
im pech wuhs
- s characterized by undue haste and lack of thought or deliberation; (`brainish' is archaic)
an impetuous display of spending and gambling - s marked by violent force
impetuous heaving waves
- When he came back home on leave, William broke his collar bone while making an impetuous attempt to learn skating.
- The planet was pockmarked with craters as if it had been buffeted by great impetuous meteors at one time.
- The two brothers were opposites; John was diligent and watchful while Peter was playful and impetuous.