ERRATIC Synonyms: 231 Similar and Opposite Words

Q: How is the word 'erratic' distinct from other similar adjectives?

Some common synonyms of erratic are eccentric , odd , outlandish , peculiar , quaint , singular , strange , and unique . While all these words mean "departing from what is ordinary, usual, or to be expected," erratic stresses a capricious and unpredictable wandering or deviating. // a friend's suddenly erratic behavior

Q: When is 'eccentric' a more appropriate choice than 'erratic'?

The words eccentric and erratic are synonyms, but do differ in nuance. Specifically, eccentric suggests a wide divergence from the usual or normal especially in behavior. // the eccentric eating habits of preschoolers

Q: When can 'odd' be used instead of 'erratic'?

The meanings of odd and erratic largely overlap; however, odd applies to a departure from the regular or expected. // an odd sense of humor

Q: When could 'outlandish' be used to replace 'erratic'?

The words outlandish and erratic can be used in similar contexts, but outlandish applies to what is uncouth, bizarre, or barbaric. // outlandish fashions of the time

Q: Where would 'peculiar' be a reasonable alternative to 'erratic'?

Although the words peculiar and erratic have much in common, peculiar implies a marked distinctiveness. // the peculiar status of America's first lady

Q: In what contexts can 'quaint' take the place of 'erratic'?

While in some cases nearly identical to erratic , quaint suggests an old-fashioned but pleasant oddness. // a quaint fishing village

Q: When might 'singular' be a better fit than 'erratic'?

In some situations, the words singular and erratic are roughly equivalent. However, singular suggests individuality or puzzling strangeness. // a singular feeling of impending disaster

Q: When would 'strange' be a good substitute for 'erratic'?

While the synonyms strange and erratic are close in meaning, strange stresses unfamiliarity and may apply to the foreign, the unnatural, the unaccountable. // a journey filled with strange sights

Q: When is it sensible to use 'unique' instead of 'erratic'?

The synonyms unique and erratic are sometimes interchangeable, but unique implies singularity and the fact of being without a known parallel. // a career unique in the annals of science

erratic

adjective

i-ˈra-tik

Definition of erratic

as in random

lacking a definite plan, purpose, or pattern so far your effort to land a summer job has been very erratic

Synonyms & Similar Words

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Antonyms & Near Antonyms

as in sporadic

lacking in steadiness or regularity of occurrence because of your erratic attendance at practice, you're in danger of being cut from the team

Synonyms & Similar Words

Antonyms & Near Antonyms

as in changing

not staying constant business at the fast-food restaurant has been so erratic lately that the manager never knows how much staff to have on hand

Synonyms & Similar Words

Antonyms & Near Antonyms

as in bizarre

different from the ordinary in a way that causes curiosity or suspicion the animal's erratic behavior made her wonder if it was ill

Synonyms & Similar Words

Antonyms & Near Antonyms

Synonym Chooser

How is the word erratic distinct from other similar adjectives?

Some common synonyms of erratic are eccentric, odd, outlandish, peculiar, quaint, singular, strange, and unique. While all these words mean "departing from what is ordinary, usual, or to be expected," erratic stresses a capricious and unpredictable wandering or deviating.

a friend's suddenly erratic behavior

When is eccentric a more appropriate choice than erratic?

The words eccentric and erratic are synonyms, but do differ in nuance. Specifically, eccentric suggests a wide divergence from the usual or normal especially in behavior.

the eccentric eating habits of preschoolers

When can odd be used instead of erratic?

The meanings of odd and erratic largely overlap; however, odd applies to a departure from the regular or expected.

an odd sense of humor

When could outlandish be used to replace erratic?

The words outlandish and erratic can be used in similar contexts, but outlandish applies to what is uncouth, bizarre, or barbaric.

outlandish fashions of the time

Where would peculiar be a reasonable alternative to erratic?

Although the words peculiar and erratic have much in common, peculiar implies a marked distinctiveness.

the peculiar status of America's first lady

In what contexts can quaint take the place of erratic?

While in some cases nearly identical to erratic, quaint suggests an old-fashioned but pleasant oddness.

a quaint fishing village

When might singular be a better fit than erratic?

In some situations, the words singular and erratic are roughly equivalent. However, singular suggests individuality or puzzling strangeness.

a singular feeling of impending disaster

When would strange be a good substitute for erratic?

While the synonyms strange and erratic are close in meaning, strange stresses unfamiliarity and may apply to the foreign, the unnatural, the unaccountable.

a journey filled with strange sights

When is it sensible to use unique instead of erratic?

The synonyms unique and erratic are sometimes interchangeable, but unique implies singularity and the fact of being without a known parallel.

a career unique in the annals of science

Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of erratic The remaining teams and their fans are left to believe that their competitive fate could be determined not by a ball’s bounce or a referee’s call, but by an erratic head of state. — Sally Jenkins, The Atlantic, 6 July 2026 Sleep deprivation strips away that capacity, often resulting in erratic outbursts or defensive behaviors that dismantle trust instantly. — Julie Kratz, Forbes.com, 5 July 2026 In the clip, the robot performs exaggerated, erratic movements, raising its arms into a martial arts-style fighting stance before lunging toward people around it. — Bojan Stojkovski, Interesting Engineering, 5 July 2026 Months of dry weather and a record lack of snow this past winter in some places along with erratic winds have been fueling the fires. — Jessica Hill, Los Angeles Times, 5 July 2026 See All Example Sentences for erratic

Recent Examples of Synonyms for erratic

Adjective

That production cap isn't random – Ferrari carefully chose it to honor the 1,499cc displacement of the company's very first V12 engine introduced in 1947.

— New Atlas, New Atlas, 10 July 2026
This equipment can also drift from its initial settings due to random factors, such as the hardware heating up as it’s used.

— John Timmer, ArsTechnica, 10 July 2026

Definition of random

Adjective

The only other competitors were the Anglo-French Concorde and the sporadic Soviet Tupolev Tu-144 program.

— David Szondy July 02, New Atlas, 2 July 2026
Redevelopment in downtown Miami and the accidental discovery of the mysterious Miami Circle in 1998 have ushered in a quarter-century of sporadic but remarkable archaeological revelations.

— Andres Viglucci, Miami Herald, 30 June 2026

Definition of sporadic

Adjective

When this place is eventually gone — a phrase that feels truly bizarre given the environment this summer and the half-century preceding it — the lasting images will be the seas of red.

— Sam McDowell Updated July 3, Kansas City Star, 4 July 2026
Continue reading … 'DEEPLY WEIRD' — CNN panel's bizarre 'read as Jewish' comment about a senator draws fierce blowback.

— , FOXNews.com, 3 July 2026

Definition of bizarre

Adjective

The road will remain open, but travelers should expect delays, including intermittent lane closures in both directions, according to a county news release.

— Daniel Lempres, Sacbee.com, 7 July 2026
Proponents didn’t view the plan as a cure-all but called it a step toward breaking the cycle of intermittent attention by making civilian protection a year-round mission.

— Hannah Allam, ProPublica, 6 July 2026

Definition of intermittent

Adjective

Household financial resilience also remains uneven, even when many adults report doing okay or living comfortably.

— Henrik Totterman, Forbes.com, 5 July 2026
The uneven workmanship of the double stitching suggests the giant flag was likely made by amateurs, curators with the historical society have determined.

— Rebekah Riess, CNN Money, 4 July 2026

Definition of uneven

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“Erratic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/erratic. Accessed 12 Jul. 2026.

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Synonyms of erratic

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