From Longman Dictionary of Contemporary Englishat thatat thata) AND/ALSOalso or besides It’s a new idea, and a good one, at that. b) AFTERafter something is said Tess called him a liar and at that he stormed out of the room. → at
Examples from the Corpus
at that• She's pregnant and having twins at that!• Party managers arrived at that conclusion because that is the way they had treated their own party for the past eight years.• Tess called him a liar and at that he stormed out of the room.• That would mean they've taken something like ten miles at that point.• None of these four and five-year-olds could read at that stage.• It contained at that time 23 houses.• This was not so easy at that time as the crewing arrangements were very much of a closed shop.• An intelligent computer-based agent will have determined that you will be on that flight at that time, in that seat.• Lifeguards at that time reported that the whale appeared lethargic and did not attempt to swim away once freed from the kelp.• So personal growth at that time was in high leaps forward rather than in little trickles.at thatat thatADDused after adding a piece of information which emphasizes and increases what you have just said You should be able to answer the question in a single sentence, and a short one at that. → thatExamples from the Corpus
at that• Party managers arrived at that conclusion because that is the way they had treated their own party for the past eight years.• That would mean they've taken something like ten miles at that point.• None of these four and five-year-olds could read at that stage.• It contained at that time 23 houses.• This was not so easy at that time as the crewing arrangements were very much of a closed shop.• An intelligent computer-based agent will have determined that you will be on that flight at that time, in that seat.• Lifeguards at that time reported that the whale appeared lethargic and did not attempt to swim away once freed from the kelp.• So personal growth at that time was in high leaps forward rather than in little trickles.