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 next

as in random

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

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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

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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

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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

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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 While the righty was erratic in a loss to the Rangers, walking four batters and allowing two runs, Rodríguez could get another big league start before Carlos Rodón is ready to return from offseason elbow surgery. —

Gary Phillips, New York Daily News, 30 Apr. 2026 That being the case, it’s already devolved into a circus just days into the case, with the erratic Musk emerging as a key liability in his own proceedings. —

Joe Wilkins, Futurism, 30 Apr. 2026 The humor only grows more erratic and unpleasant from there. —

Alison Foreman, IndieWire, 30 Apr. 2026 That said, experts agree that erratic winter weather combined with surging spring temperatures and higher-than-average precipitation is setting the stage for an early and aggressive mosquito season. —

Cori Sears, The Spruce, 30 Apr. 2026 See All Example Sentences for erratic

Recent Examples of Synonyms for erratic

Adjective

Even if the threshold for disagreement was quite low, disagreements were amplified to the point that each random interaction was increasingly likely to exceed the threshold.

— ArsTechnica, ArsTechnica, 7 May 2026
But as some have learned the hard way, that tendency of random things to appear to form patterns means that the other peak might be just noise.

— Faye Flam, Scientific American, 7 May 2026

Definition of random

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“Erratic.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/erratic. Accessed 8 May. 2026.

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Synonyms of erratic

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