Englishfor English speakers
erratic
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adjective
(= fickle, mercurial, quicksilver)
liable to sudden unpredictable change
erratic behavior
fickle weather
mercurial twists of temperament
a quicksilver character, cool and willful at one moment, utterly fragile the next
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adjective
(= planetary, wandering)
having no fixed course
an erratic comet
his life followed a wandering course
a planetary vagabond
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adjective
(= temperamental)
likely to perform unpredictably
erratic 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
— Osbert Lancaster
potential
Adjective
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A potential customer, benefit, problem, etc. is one that might happen in the future.
Realistic goals can then be set to prevent potential problems from becoming actual ones.
To grow, a business must identify potential customers and their needs.
potential
Noun
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If mathx/math has potential for mathy/math, then it's might change toward mathy/math or cause mathy/math.
Technology has the potential for improvement as well as for harm.
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If something has or shows potential, they will likely be very good in the future.
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The potential is the difference in voltage between two points on an electrical circuit.