1
be impulsive
表示某人在某方面容易冲动，后接about/in/with等介词。
She is often impulsive about spending money.
她花钱时常常很冲动。
冲动的；任性的
先理解核心含义，再看它在真实句子里的用法。
冲动的；任性的
acting on impulse, without forethought or external prompting
She is often impulsive about spending money.
她花钱时常常很冲动。
具有驱动或推动力量的；给予冲动的；移动的
Having the power of driving or impelling; giving an impulse; moving; impellent.
由冲动或短暂情感驱动的；倾向于在未经充分考虑下快速决策的
Actuated by impulse or by transient feelings; inclined to make rapid decisions without due consideration.
作用瞬间的或通过冲动的力；非连续的
Of a force, acting momentarily, or by impulse; not continuous.
She regretted her impulsive decision to quit the job.
她后悔自己冲动地决定辞职。
Try not to be so impulsive when you spend money.
花钱时别那么冲动。
His impulsive nature often gets him into trouble.
他冲动的性格常常让他惹上麻烦。
表示某人在某方面容易冲动，后接about/in/with等介词。
She is often impulsive about spending money.
她花钱时常常很冲动。
impulsive 常用作定语修饰表示行为、决定、人等的名词。
Making an impulsive decision led to problems.
做出冲动的决定导致了问题。
too + impulsive 表示程度过分，常与不定式搭配说明结果。
He is too impulsive to be a good manager.
他太冲动了，做不了好经理。
Not this
He is an impulsive.
Use this
He is impulsive.
impulsive 是形容词，不能直接用作名词，应去掉不定冠词，直接作表语。
Not this
She acted impulsive.
Use this
She acted impulsively.
impulsive 是形容词，修饰动词需用副词形式 impulsively。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
冲动的决定
He regretted his impulsive decision to quit his job.
他后悔自己冲动辞职的决定。
冲动行为
Her impulsive behavior often got her into trouble.
她的冲动行为常常让她陷入麻烦。
冲动购物
Online sales encourage impulsive buying.
网上促销鼓励冲动购物。
冲动消费
He tried to control his impulsive spending.
他努力控制自己的冲动消费。
冲动的性格
His impulsive personality makes him fun to be around.
他冲动的性格使他身边总是很有趣。
冲动的行动
She apologized for her impulsive action.
她为自己的冲动行为道了歉。
冲动，我就是冲动；我没办法，这就是我的本性。
The line is from Wilson Phillips's 1990 hit song 'Impulsive', where the singer freely admits that she often acts on sudden feelings.
这句歌词出自Wilson Phillips 1990年的热门单曲《Impulsive》，歌中坦率承认自己常常凭一时冲动行事。
Use impulsive naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
im-进入 + pulse脉搏/脉冲: 脉搏一动就不假思索行动, 即“冲动的”。
语域：neutral 常见场景：日常谈论性格或行为时、心理学或教育讨论中 “impulsive”在多数场合都比较中性，常用来描述一个人凭一时冲动行事；在心理或教育语境中也较常见，语气不算特别正式，也没有明显口语色彩。
与 impulsive 押韵的词：compulsive、repulsive、convulsive、propulsive，均以 /-ʌlsɪv/ 结尾。注意 impulse (/ˈɪmpʌls/) 和 pulse (/pʌls/) 拼写相似，但发音不同，不押韵。
Dictionary facts from ECDICT, WIKTIONARY.