W.O.W. - indelible

indelible \in-DEL-uh-buhl\, adjective:
1. That cannot be removed, erased, or washed away.
2. Making marks that cannot easily be removed or erased.
3. Incapable of being forgotten; memorable.
dictionary.com

A sentence: The way he lived his life made an indelible impression on millions.

Some of these words I choose, I have learned at one point. I just don't think to use them. I have been thinking of my W.O.W.'s as the week goes, and I'm happy to say it is working. I know the words and I use them!
I dare you to use indelible this week.