variability

The weather in San Francisco is known for its variability. One minute it's summer and the next, winter. Variability means the tendency to shift or change — of being "variable."

There are many words that contain vari-, and they almost all have to do with change or difference. Variability is the noun version of this idea. The variability of the weather means that you never know exactly what to wear. T-shirt or sweater: the choices vary along with the weather. Many things are known for their variability: the taste of teenagers, the talent of the singers on "American Idol," Frank Sinatra's moods. These are just some of the things that exhibit real variability.

Definitions of variability
1

n the quality of being subject to variation

Synonyms:
variableness, variance
Antonyms:
invariability, invariableness, invariance
the quality of being resistant to variation
Types:
variedness
characterized by variation
variegation
variability in coloration
personal equation
variability attributable to individual differences
Type of:
changeability, changeableness
the quality of being changeable; having a marked tendency to change

n the quality of being uneven and lacking uniformity

Synonyms:
unevenness
Antonyms:
evenness, invariability
a quality of uniformity and lack of variation
Types:
show 6 types...
hide 6 types...
rockiness
the quality of abounding in rocks and stones
ruggedness
the quality of being topologically uneven
jaggedness
something irregular like a bump or crack in a smooth surface
patchiness
unevenness in quality or performance
waviness
unevenness produced by waves or wrinkles
hilliness
the quality of being hilly
Type of:
irregularity, unregularity
not characterized by a fixed principle or rate; at irregular intervals

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