sputter

American  

[spuht-er] / ˈspʌt ər /

verb (used without object)

1. to make explosive popping or sizzling sounds.

2. to emit particles, sparks, etc., forcibly or explosively, especially accompanied by sputtering sounds.

3. to eject particles of saliva, food, etc., from the mouth in a light spray, as when speaking angrily or excitedly.

4. to utter or spit out words or sounds explosively or incoherently, as when angry or flustered.

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verb (used with object)

1. to emit (anything) forcibly and in small particles, as if by spitting.

   The fire sputtered cinders.

2. to eject (saliva, food, etc.) in small particles explosively and involuntarily, as in excitement.

3. to utter explosively and incoherently.

noun

1. the act or sound of sputtering.

2. explosive, incoherent utterance.

3. matter ejected in sputtering.

sputter British  

/ ˈspʌtə /

verb

1. another word for splutter splutter splutter

2. physics

   1. to undergo or cause to undergo a process in which atoms of a solid are removed from its surface by the impact of high-energy ions, as in a discharge tube

   2. to coat (a film of a metal) onto (a solid surface) by using this process

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noun

1. the process or noise of sputtering

2. incoherent stammering speech

3. something that is ejected while sputtering

Other Word Forms

• sputterer
  noun
• sputteringly
  adverb

Etymology

Origin of sputter

1590–1600; sput- (variant of spout ) + -er ⁶; cognate with Dutch sputteren

Explanation

When someone (or something) makes a soft, fast popping sound, they sputter. If you expect to win first prize in a poetry contest but don't, you might sputter, "But...but..." When you sputter, you're often angry, surprised, or otherwise at a loss for words. You may sputter incoherent sounds, or short syllables. When you start up your dirt bike, its engine sputters too, with muted exploding sounds. This word is also a noun: "The sputter from out on the lake told me he got the old motorboat going." In physics, to sputter is to send high-energy particles onto a material, dislodging tiny particles from its surface.

Example Sentences

Hopes had been high that the eurozone's traditional growth engine would sputter back to life in 2026 after years of stagnation, driven by Chancellor Friedrich Merz's public spending blitz.

From Barron's • Apr. 22, 2026

If an oil shock persisted long enough, economic growth could also sputter.

From MarketWatch • Mar. 24, 2026

But there are signs the engine is beginning to sputter.

From The Wall Street Journal • Mar. 17, 2026

Detroit, which can sputter offensively, controls this one with tempo and physicality.

From Los Angeles Times • Nov. 27, 2025

Just like my parents’ pods, the button blinks in a slow orange sputter over the nameplate.

From "The Last Cuentista" by Donna Barba Higuera

Related Words

• falter
• stammer
• stutter