Synonyms of fluctuating

fluctuating 1 of 2

adjective

ˈflək-chə-ˌwā-tiŋ 

1

as in volatile

likely to change frequently, suddenly, or unexpectedly

a fluctuating stock market makes it hard for investors to know what to do

Synonyms & Similar Words

• volatile
• unpredictable
• changeful
• unstable
• variable
• inconsistent
• uncertain
• unsettled
• changeable
• mercurial
• capricious
• mutable
• fickle
• inconstant
• erratic
• temperamental
• fluid
• unsteady
• random
• skittish
• up in the air
• scattered
• unreliable
• shaky
• flickery
• arbitrary
• haphazard
• aimless
• stray
• ambivalent
• irregular
• desultory
• vacillating
• wavering
• undependable
• hit-or-miss
• untrustworthy
• protean
• slapdash
• dicey
• adaptable
• versatile
• hesitating
• mobile
• shilly-shallying
• shilly-shally

Antonyms & Near Antonyms

• constant
• certain
• steady
• stable
• unchanging
• predictable
• invariable
• stationary
• unchangeable
• immutable
• settled
• uniform
• persistent
• unvarying
• even
• permanent
• changeless
• lasting
• durable
• abiding
• equable
• reliable
• dependable
• true
• sure
• trustworthy
• trusty
• tried
• tried-and-true

2

as in changing

not staying constant

our speed was constantly fluctuating, so the figure of 50 miles per hour is just an average

Synonyms & Similar Words

• changing
• varying
• uneven
• unstable
• volatile
• unequal
• changeful
• erratic
• variable
• inconsistent
• irregular
• unsteady
• uncertain
• changeable
• capricious
• mercurial
• unsettled
• fickle
• fluid
• mutable
• inconstant
• choppy

Antonyms & Near Antonyms

• constant
• stable
• steady
• unchanging
• regular
• changeless
• unvarying

fluctuating

2 of 2

verb

present participle of fluctuate

as in varying

to pass from one form, state, or level to another

temperatures will fluctuate between the low and high 50s today

Synonyms & Similar Words

• changing
• varying
• shifting
• mutating
• improving
• snapping
• deteriorating
• transmuting
• worsening
• morphing
• metamorphosing
• vacillating
• wavering
• bettering
• turning around
• seesawing
• teetering

Antonyms & Near Antonyms

• stabilizing
• plateauing

Example Sentences

Recent Examples of fluctuating

Adjective

Don’t Leave Pumpkins to Extreme Elements Pumpkins prefer consistency, so fluctuating temperatures—such as freezing nights followed by warm, sunny days—can weaken them. — Mary Cornetta, Better Homes & Gardens, 16 Oct. 2025

Many rival fans have had a good laugh at Tottenham and their wildly fluctuating results this season. — Nick Miller, The Athletic, 13 Dec. 2024

The same amount of water per unit time can arrive as a smooth, steady rain of many small drops or as a strongly fluctuating shower with fewer but much larger drops. — Douglas Natelson, Scientific American, 19 Mar. 2024

Irwin said that the characters’ runaway emotions are mirrored by the wildly fluctuating time signatures. — Mary Carole McCauley, Baltimore Sun, 25 Jan. 2024

Verb

The recall may be particularly relevant to women in midlife, when fluctuating estrogen levels can influence histamine activity and potentially intensify allergy symptoms. — Emily Cegielski, Flow Space, 22 July 2026

But the fluctuating fleet size, inconsistency in supervised vs unsupervised vehicles, and long wait times tell a very different story. — Andrew J. Hawkins, The Verge, 21 July 2026

Antonelli’s once-commanding standings lead is suddenly looking vulnerable, especially with 13 races remaining this year (more on the fluctuating 2026 calendar below). — Alex Kalinauckas, New York Times, 15 July 2026

The fluctuating abuse from French fans is not unique to Mbappé. — Leah Asmelash, CNN Money, 13 July 2026

Uché Blackstock, a leading health equity advocate, reflects on the healthcare sector's fluctuating commitment to equity. — Sachin H. Jain, Forbes.com, 11 July 2026

The testing evaluated the AI’s real-time performance under fluctuating conditions with the controller turned both on and off. — Mrigakshi Dixit, Interesting Engineering, 6 July 2026

Even summer packing lists call for a lightweight layer to beat fluctuating cabin temperatures and breezy oceanfront evenings, which is why the BeCalm Wrap-front Long-sleeve Shirt is a no-brainer buy at 38 percent off. — Julia Morlino, Travel + Leisure, 28 June 2026

Specifically, groundwater levels began fluctuating, monitoring data shows. — Mark Price june 27, Charlotte Observer, 27 June 2026