indelible
/ɪnˈdɛləbəl/
adjective
- Impossible to remove, erase, or wash away.
- The marker left an indelible stain on the whiteboard.
- The dye is indelible, so be careful not to spill it on your clothes.
- She used indelible ink to label her water bottle.
- Impossible to forget or ignore; very memorable.
- Her speech made an indelible impact on the audience.
- The trip to the Grand Canyon left an indelible impression on me.
- The tragedy left an indelible mark on the community.