The whole incident left one indelible impression.
Although peng won on appeal and the plaintiff subsequently dropped the lawsuit, the initial court ruling made an indelible impression on many would-be Samaritans.
Although she had only seen one face with the old man, she left an indelible impression on her heart.
From his account of the voyages in the region, I believe the indelible impression left him by the senior British crew was that order, strength and efficiency were the keys.
The experience made an indelible impression on me.
You leave a far too indelible impression.