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fluctuating

fluctuating

6 6.1
Changing up and down often in a way you cannot guess
  • adjective
  • /ˈflʌk.tʃu.eɪ.tɪŋ/
: fluctuante
  • The stock market has been fluctuating wildly, causing investors to feel anxious.

If you have this, you know, fluctuating speed of the treadmill.

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Examples

  • Many people who have fluctuating blood sugar levels have a need for more magnesium.

  • So it's like a very fluctuating income that's not consistent until you reach a certain point.

  • And these of course are stars, as David mentioned earlier, stars that are fluctuating in in brightness.

  • And it's constantly fluctuating, but over short times it averages.

  • So our brain and our brain chemicals are fluctuating, not predetermined.

  • There are too many examples of assessors failing to consider or understand the fluctuating and non visible nature of some conditions.

  • Her mood is often fluctuating, shifting from happiness to sadness throughout the day.

  • The temperatures this week are fluctuating, with highs and lows that change daily.

Synonyms

unpredictable
vsfluctuating
166 4.4

Likely to change suddenly and hard to know in advance

is about frequent rises and falls rather than general unpredictability
unstable
vsfluctuating
128 4.4

Not steady and likely to change, fail, or fall

highlights repeated up and down changes rather than general instability
volatile
vsfluctuating
106 7.0

Likely to change suddenly and become more dangerous

is more neutral, focusing on frequent uneven rises and falls
erratic
vsfluctuating
82 6.1

Not regular or predictable and likely to change suddenly

is more about repeated rising and falling than just randomness
varying
vsfluctuating
74 3.4

Different in size, amount, level or kind

focuses on irregular rises and falls not only differing degrees
irregular
vsfluctuating
42 3.5

Happening at no fixed times

is about frequent unpredictable rises and falls rather than timing only
fickle
vsfluctuating
40 6.2

Changing often in a way you cannot rely on

applies to varying levels or values rather than emotions
shifty
vsfluctuating
5 6.7

Something that moves and changes direction suddenly and often

focuses on irregular rising and falling rather than movement or direction
unsettled
vsfluctuating
4 4.3

Weather that often changes, bringing rain or strong wind

relates to frequent up and down changes rather than temporary conditions
inconstant
vsfluctuating
2 7.5

Changing often and not staying the same

emphasizes irregular up and down shifts rather than unreliability
vacillating
vsfluctuating
1 8.1

Not able to make a firm decision and often changing their mind

refers to physical or measurable rises and falls rather than indecision
changeful
vsfluctuating
  • Archaic
1 7.5

Tends to be different often

describes general frequent change rather than specific rises and falls
nonconstant
vsfluctuating
1 6.3

Changing over time and not staying the same

implies repeated rises and falls rather than simple change
a bit switchy
vsfluctuating
  • UK
9.2

Often changes mood or behavior quickly and without warning

refers to frequent irregular rises and falls not mood shifts

Antonyms

327 2.0

Not changing over time and remaining the same

163 1.8

Stays the same and cannot be changed

Compounds

1 5.3

The price of one currency that goes up and down with market buying and selling

How Variable

erratic
82 6.1
volatile
106 7.0
fluctuating
6 6.1
changeable
9 3.5
steady
327 2.0

Surface Forms

fluctuating positive

Morphology

fluctuating = fluctuate (transparent) = fluctuate + ing

A standard adjectival/present-participle formation from the verb 'fluctuate'; the meaning is directly derived and obvious to learners who know the verb.

Etymology

The word fluctuating comes from the Latin root fluctus, which means 'wave' or 'flow', like sea waves that rise and fall. So when something is fluctuating, it goes up and down or changes often.