- He took courses to remedy his abysmal ignorance.
- We find ourselves facing the horror of what has always been the Achilles heel of the left wing: its abysmal ignorance of economic science.
- The abysmal ignorance of the foreigner about China and the Chinese cannot be more impressive than when he asks the question: Do the Chinese have a sense of humor?
- His show-off only serves to show up his ignorance.
- He tried to veil his contempt at my ignorance.
- She professed total ignorance of the matter.