01 a. Consisting of flakes or of small, loose masses; lying, or cleaving off, in flakes or layers; flakelike.
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1.
Consisting of flakes or of small, loose masses; lying, or cleaving off, in flakes or layers; flakelike.“What showers of mortal hail, what flaky fires!” — Watts.“A flaky weight of winter's purest snows.” — Wordsworth.
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2.
prone to strange or erratic behavior; -- of persons.
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3.
odd, unpredictable or unconventional; offbeat; whacky; -- of behavior.
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4.
unpredictable, erratic, or unreliable; -- of machinery, especially electronic devices.