brittle
B2CEFR level
45/100Rarity: uncommon
TechnicalRegister
Fragile and likely to fail suddenly under pressure or stress.
The operating model looked efficient on paper but proved brittle the moment demand spiked.
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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