erratic

[ih-rat-ik] / ɪˈræt ɪk /

ADJECTIVE

unpredictable; wandering

Synonyms

STRONGEST

abnormal arbitrary bizarre capricious eccentric inconsistent irregular mercurial uncertain unreliable unstable unusual volatile wayward weird whimsical

WEAK

aberrant anomalous changeable desultory devious dicey directionless dubious fitful flaky fluctuant idiosyncratic iffy incalculable inconstant meandering nomadic oddball peculiar planetary rambling roving shifting spasmodic strange stray undirected unnatural vagarious variable

Antonyms

STRONGEST

calm common normal reasonable regular sensible stable standard steadfast steady unchanging usual

WEAK

certain consistent definite dependable predictable reliable sure

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The court heard that Parker's behaviour had become "erratic" and he refused repeated attempts by his mother and sister to persuade him to get mental health support.

From BBC • May 22, 2026

The jobs report has been up and down lately — some economists would say erratic — and it’s hard to find a major improvement in hiring trends.

From MarketWatch • May 7, 2026

Turner, labeled “Captain Outrageous” for his erratic behavior, had once been thought to have bipolar disorder.

From The Wall Street Journal • May 6, 2026

His erratic messaging on Iran is further diluted by increasingly frequent digressions on his favorite topic: the construction and renovation of buildings.

From Barron's • Apr. 21, 2026

But they were so fierce and erratic in their attacks, we never stood a chance.

From "Summer of the Mariposas" by Guadalupe García McCall

Vocabulary lists containing erratic

To Kill a Mockingbird

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List 1

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"To Kill a Mockingbird" by Harper Lee, Chapters 1–6

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