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Classic usage
Reading level: hard
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
From Middle English reklesnes, reklesnesse, rekelesnesse (also assibilated as rechelesnes, reccheleesnesse), from Old English rēcelēasnes (“recklessness, carelessness, negligence”), equivalent to reckless + -ness.
foolhardiness, rashness
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Classic usage
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