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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English perilous, from Old French perilleus, equivalent to peril + -ous, from the noun peril, or from Latin perīculōsus. Doublet of periculous.
parlous, precarious, touch-and-go
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Classic usage
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