Synonyms of sporadic

sporadic

adjective

spə-ˈra-dik 

1

as in occasional

lacking in steadiness or regularity of occurrence

sporadic loud noises kept startling everyone

Synonyms & Similar Words

• occasional
• intermittent
• erratic
• sudden
• irregular
• casual
• unpredictable
• unsteady
• discontinuous
• violent
• spasmodic
• fitful
• spastic
• episodic
• spotty
• aperiodic
• volatile
• choppy
• random
• scattered
• catchy
• haphazard
• interrupted
• fragmentary
• varying
• changeful
• changing
• odd
• broken
• convulsive
• unstable
• aimless
• disconnected
• uncertain
• stray
• unsettled
• desultory
• arbitrary
• variable
• capricious
• fluctuating
• hit-or-miss
• hit-and-miss
• slapdash
• inconstant
• mercurial
• mutable
• temperamental
• changeable
• fluid
• fickle
• wavering
• flickery

Antonyms & Near Antonyms

• continuous
• constant
• periodic
• regular
• steady
• habitual
• stable
• uniform
• repeated
• stationary
• even
• systematic
• unchanging
• equable
• orderly
• methodical
• changeless
• unvarying
• unrelenting
• unremitting
• unwavering

2

as in infrequent

not often occurring or repeated

so long as the complaints remain sporadic, we're doing fine

Synonyms & Similar Words

• occasional
• infrequent
• odd
• isolated
• rare
• unusual
• uncommon
• intermittent
• scattered
• scarce
• few and far between
• discontinuous
• unique
• erratic
• spasmodic
• irregular
• fitful
• spotty
• unsteady
• choppy

Antonyms & Near Antonyms

• frequent
• regular
• daily
• common
• ordinary
• routine

Synonym Chooser

How is the word sporadic distinct from other similar adjectives?

Some common synonyms of sporadic are infrequent, rare, scarce, and uncommon. While all these words mean "not common or abundant," sporadic implies occurrence in scattered instances or isolated outbursts.

sporadic cases of influenza

When is it sensible to use infrequent instead of sporadic?

Although the words infrequent and sporadic have much in common, infrequent implies occurrence at wide intervals in space or time.

infrequent family visits

When is rare a more appropriate choice than sporadic?

The meanings of rare and sporadic largely overlap; however, rare suggests extreme scarcity or infrequency and often implies consequent high value.

rare first editions

Where would scarce be a reasonable alternative to sporadic?

While the synonyms scarce and sporadic are close in meaning, scarce implies falling short of a standard or required abundance.

jobs were scarce during the Depression

When would uncommon be a good substitute for sporadic?

The synonyms uncommon and sporadic are sometimes interchangeable, but uncommon suggests a frequency below normal expectation.

smallpox is now uncommon in many countries

Example Sentences

Recent Examples of sporadic

She’s made sporadic appearances since then, anchoring some WWE premium live events of welcoming fans to them. —Ryan Gaydos, FOXNews.com, 17 Apr. 2026

But that road can be longer when an ailment isn’t as visible—a string of mysterious stomachaches or sporadic painful migraines are more difficult to explain. —Brianne Kane, Scientific American, 17 Apr. 2026

There are a few switchbacks with sporadic wooden steps to help in your ascent. —Maura Fox, San Diego Union-Tribune, 17 Apr. 2026

But there was no rhythm to be found for much of Year 19 for the veteran guard, a campaign filled with constant change, starting with an unexpected move to the bench at the season’s outset, followed by a trade, a re-signing and sporadic role change. —Jace Frederick, Twin Cities, 16 Apr. 2026

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