资料来源 : pyDict

不能放宽的,不能缓和的,不能减轻的

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Immitigable \Im*mit"i*ga*ble\, a. [L. immitigabilis; fr. pref.
   im- not + mitigare to mitigate.]
   Not capable of being mitigated, softened, or appeased.
   --Coleridge.