FLUCTUATE Synonyms: 19 Similar and Opposite Words

Q: How does the verb 'fluctuate' differ from other similar words?

Some common synonyms of fluctuate are oscillate , sway , swing , undulate , vibrate , and waver . While all these words mean "to move from one direction to its opposite," fluctuate suggests constant irregular changes of level, intensity, or value. // fluctuating interest rates

Q: When would 'oscillate' be a good substitute for 'fluctuate'?

Although the words oscillate and fluctuate have much in common, oscillate stresses a usually regular alternation of direction. // an oscillating fan

Q: Where would 'sway' be a reasonable alternative to 'fluctuate'?

While in some cases nearly identical to fluctuate , sway implies a slow swinging or teetering movement. // trees swaying in the breeze

Q: When can 'swing' be used instead of 'fluctuate'?

The synonyms swing and fluctuate are sometimes interchangeable, but swing implies a movement of something attached at one end or one side. // the door suddenly swung open

Q: When is it sensible to use 'undulate' instead of 'fluctuate'?

In some situations, the words undulate and fluctuate are roughly equivalent. However, undulate suggests a gentle wavelike motion. // an undulating sea of grass

Q: When might 'vibrate' be a better fit than 'fluctuate'?

While the synonyms vibrate and fluctuate are close in meaning, vibrate suggests the rapid oscillation of an elastic body under stress or impact. // the vibrating strings of a piano

Q: When could 'waver' be used to replace 'fluctuate'?

The words waver and fluctuate can be used in similar contexts, but waver stresses irregular motion suggestive of reeling or tottering. // the exhausted runner wavered before collapsing

fluctuate

verb

ˈflək-chə-ˌwāt

Definition of fluctuate next

as in to vary

to pass from one form, state, or level to another temperatures will fluctuate between the low and high 50s today

Synonyms & Similar Words

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How does the verb fluctuate differ from other similar words?

Some common synonyms of fluctuate are oscillate, sway, swing, undulate, vibrate, and waver. While all these words mean "to move from one direction to its opposite," fluctuate suggests constant irregular changes of level, intensity, or value.

fluctuating interest rates

When would oscillate be a good substitute for fluctuate?

Although the words oscillate and fluctuate have much in common, oscillate stresses a usually regular alternation of direction.

an oscillating fan

Where would sway be a reasonable alternative to fluctuate?

While in some cases nearly identical to fluctuate, sway implies a slow swinging or teetering movement.

trees swaying in the breeze

When can swing be used instead of fluctuate?

The synonyms swing and fluctuate are sometimes interchangeable, but swing implies a movement of something attached at one end or one side.

the door suddenly swung open

When is it sensible to use undulate instead of fluctuate?

In some situations, the words undulate and fluctuate are roughly equivalent. However, undulate suggests a gentle wavelike motion.

an undulating sea of grass

When might vibrate be a better fit than fluctuate?

While the synonyms vibrate and fluctuate are close in meaning, vibrate suggests the rapid oscillation of an elastic body under stress or impact.

the vibrating strings of a piano

When could waver be used to replace fluctuate?

The words waver and fluctuate can be used in similar contexts, but waver stresses irregular motion suggestive of reeling or tottering.

the exhausted runner wavered before collapsing

Examples 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 fluctuate Understand why energy prices change Electricity rates can fluctuate for several reasons, including changes in energy demand. —

Caitlin Ritchie, Fort Worth Star-Telegram, 9 Jan. 2025 For example, the team discovered that water plays a key role in stopping a planet's temperature from fluctuating. —

Tom Brown, Space.com, 6 Jan. 2025 The 2024 data could fluctuate as police continue to investigate deaths. —

David Clarey, Journal Sentinel, 31 Dec. 2024 Data from Flightradar24 showed its vertical speed fluctuated over 100 times in the last 74 minutes of the flight. —

David Faris, Newsweek, 27 Dec. 2024 See all Example Sentences for fluctuate

Recent Examples of Synonyms for fluctuate

Verb

There’s little standardization across platforms and plenty of varying approaches to ad integration that could keep us from realizing blockbuster ad experiences across every platform.

— Jon Kirchner, Forbes, 10 Jan. 2025
Getting to the airport will still be tricky, though, as roads and highways across North Texas had varying amounts of ice and snow early Friday.

— Kate Marijolovic, Fort Worth Star-Telegram, 10 Jan. 2025