A lasting impression is an impact that someone or something has on another person or thing that remains in their memory for a long time. The two crossword solutions for the term 'lasting impression' are SCAR and DENT. A SCAR is a mark left on the skin after a wound or injury has healed, while a DENT is a depression or hollow in a surface, usually caused by a blow or pressure. Both of these terms can be used to describe a lasting impression, as they are physical marks that remain even after the initial event has passed.