impracticability
C2CEFR level
78/100Rarity: rare
TechnicalRegister
The state of performance having become excessively burdensome or unfeasible through unforeseen events.
The seller pleaded commercial impracticability after the sole refinery supplying the compound was destroyed.
Rarity runs from 0 (a word everyone knows) to 100 (almost never seen outside specialist or literary writing). Level is the word's real difficulty on the CEFR scale, from A1 to C2.
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