onerous
B2CEFR level
50/100Rarity: uncommon
TechnicalRegister
Law adjective
Imposing a burdensome or disproportionately heavy obligation on one party.
The liquidator disclaimed the onerous lease that continued to drain the estate.
Business adjective
Involving a heavy burden of duty, work, or responsibility.
The onerous reporting requirements in the new contract nearly doubled the engagement's overhead.
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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