erratically
Americanadverb
-
in a way that deviates from what is normal or proper.
When other employees noticed she was behaving erratically, the store installed cameras and caught her stealing pills.
-
without any definite direction or pattern; in an irregular or inconsistent way.
The cyclone moved erratically westward and southward for two days while slowly strengthening into a tropical storm.
Since I was fourteen I've kept a journal, albeit somewhat erratically at times.
Other Word Forms
Etymology
Origin of erratically
First recorded in 1610–20; erratic ( def. ) + -ally ( def. )
Explanation
If you do something erratically, you do it in an arbitrary or irregular way. Driving erratically is a good way to get pulled over by a traffic cop. A new bike rider might pedal erratically up and down the street, swerving and stopping suddenly. Or, your anxiety about getting an important grade could make you behave erratically, chewing your nails nervously one minute and laughing loudly the next. Things that are erratic are uneven or unpredictable, and the Latin root is erraticus, "wandering, straying, or roving."
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.
However, a waving weather front will continue to take outbreaks of rain erratically eastwards across the UK on Wednesday, sweeping away the warmest of the conditions.
From BBC ● Sep. 22, 2026
Not long after, video footage showed the vehicle swerving erratically between lanes.
From Los Angeles Times ● Sep. 4, 2026
"In Gironde, the fire became extremely intense and unpredictable again at the start of the night, generating its own winds and advancing erratically toward the Bordeaux metropolitan area," Nunez said.
From Barron's ● Jul. 26, 2026
Police say witnesses reported the vehicle "driving erratically" around the top of the Great Orme.
From BBC ● Jul. 15, 2026
He’d been added to the boat last, he’d often struggled to master the technical side of the sport, and he still tended to row erratically.
From "The Boys in the Boat: Nine Americans and Their Epic Quest for Gold at the 1936 Berlin Olympics" by Daniel James Brown
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