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English adjective: erratic

1. erratic liable to sudden unpredictable change


SamplesErratic behavior.
Fickle weather.
Mercurial twists of temperament.
A quicksilver character, cool and willful at one moment, utterly fragile the next.


Synonymsfickle, mercurial, quicksilver


Similarchangeable, changeful


Antonymsunchangeable

2. erratic having no fixed course


SamplesAn erratic comet.
His life followed a wandering course.
A planetary vagabond.


Synonymsplanetary, wandering


Similarunsettled


Antonymssettled

3. erratic likely to perform unpredictably


SamplesErratic winds are the bane of a sailor.
A temperamental motor; sometimes it would start and sometimes it wouldn't.
That beautiful but temperamental instrument the flute.


Synonymstemperamental


Similarundependable, unreliable


Antonymsdependable, reliable









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