impulsive

形容词 impulsive:

1. proceeding from natural feeling or impulse without external stimulus
   同义词：unprompted
2. without forethought
3. having the power of driving or impelling
   同义词：driving
4. determined by chance or impulse or whim rather than by necessity or reason
   同义词：capricious, whimsical
5. characterized by undue haste and lack of thought or deliberation; (`brainish' is archaic)
   同义词：hotheaded, impetuous, madcap, tearaway, brainish

1. Such impulsive acts as hugging strangers; impulsive generosity.
   比如拥抱陌生人这种冲动的举止; 一时冲动的慷慨大方
2. A hand tool used to exert an impulsive force by striking, consisting of a handle with a perpendicularly attached head made of a relatively heavy, rigid material.
   锤子一种通过敲击发出冲击力的工具，包括一个把手和一个与之垂直的由较沉、较重的金属制成的头
3. He was, on his own admission, impulsive by nature.
   他承认自己生性易于感情冲动。
4. Capable of calmly awaiting an outcome or a result; not hasty or impulsive.
   耐心的，不冲动的能平静等待后果或结果的; 不急的或不冲动的

im.pul.sive

adj.（形容词）
Inclined to act on impulse rather than thought.
易冲动的：倾向于冲动行事而不深思熟虑的
Motivated by or resulting from impulse:
冲动造成的：由于冲动引发或造成的：
例句：
such impulsive acts as hugging strangers; impulsive generosity.See Synonyms at spontaneous
比如拥抱陌生人这种冲动的举止；一时冲动的慷慨大方参见 spontaneous

Having force or power to impel or incite; forceful.
驱动的，推进的：有力量或权力驱使或煽动的；有力的
Physics Acting within brief time intervals. Used especially of a force.
【物理学】 冲击的：短期内做出的行为。特别是在一种力量的驱使下

【引伸】
impul.sively
adv.（副词）
impul.siveness 或
im.pulsiv.ity
n.（名词）