impoverished

adjective4

1. •
   Reduced to poverty.
2. •
   Lacking in richness, diversity or health.

   • The impoverished soil here can not support any crop.
3. •
   Having lost a component, ingredient, faculty or feature; rendered poor in some attribute; depleted.

   • English has an impoverished inflectional system.
4. •
   Represented by few species.

   • The fossil record from this era is impoverished.