Characterized by undue haste and lack of thought or deliberation, (`brainish' is archaic)
English: hotheaded, impulsive, impetuous, madcap, tearaway(a), brainish
impulsiveEnglish
impulsive, brainish, capricious, driving, hotheaded
Adjective
Determined by chance or impulse or whim rather than by necessity or reason
English: capricious, impulsive, whimsical
Having the power of driving or impelling
English: driving, impulsive
Bahasa: impulsif
2 more adjective senses
Proceeding from natural feeling or impulse without external stimulus
English: impulsive, unprompted
Without forethought
English: impulsive