fluctuates

Rises and falls

Fluctuates means rises and falls irregularly over time.

Prices fluctuate with supply and demand.

Weight fluctuates day to day.

Mood fluctuates.

The word implies movement within a range rather than steady change in one direction: The temperature fluctuates between 60 and 75 degrees.

What fluctuates is unstable but not necessarily chaotic.

variation

varies

Changes in amount

  • rangesContinuous extent series
  • shiftsMoves or work periods
  • swingsRhythmic back-and-forth movements

wavers · alternates · seesaws · yo-yos · spikes · dips · surges · plummets · climbs · drops

instability

volatile

Liable to sudden change

unpredictable · capricious · fickle · mercurial · turbulent · variable · irregular · unsteady · wavering · vacillating

oscillation

waveform

Graphed oscillation pattern

periodic · cycle · sinusoidal · alternating · swing · pulsation · undulation · wobble · quiver · amplitude

rhythm

pulse

Arterial blood throb

  • tempoRate of musical performance
  • cadenceRhythmic pulse or pattern
  • beatRhythmic pulse or strike

meter · pace · timing · pattern · flow · cycle · periodicity · regularity · irregularity · intermittent

market

prices

Amounts charged for goods

values · indices · commodities · trading · volatility · correction · rally · downturn · uptick · bearish

Opposites
stability vs. variability

fluctuatesstabilizes

Makes firm or steady

steadies · holds steady · plateaus · levels off · persists

decisiveness vs. wavering

fluctuatesdecides

Reaches a conclusion

commits · settles · resolves · holds fast · locks in

Phrases
Family

fluctuate, fluctuation, fluctuating, fluctuations, fluctuated

Familiarity
Top 100,000
Profile
Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G