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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 tortuous, tortuose, from Anglo-Norman and Old French tortuos, from Latin tortuōsus, from tortus (“a twisting, winding”).
Byzantine, convoluted, involved, knotty, tangled
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Classic usage
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