The blood that ran so close to her fair skin might have been a preserving fluid rather than a ravaging element; yet her look of indestructible youthfulness made her seem neither hard nor dull, but only primitive and pure.
There are no more uses of "indestructible" in the book.
Show samples from other sources
When the fear takes over, use the only thing more powerful, more indestructible, to fight it: your spirit.
Sabaa Tahir -- An Ember in the Ashes
"Nick, don’t let one good turn make you feel indestructible," Go said.