Words similar to unnoticeable

Example sentences for: unnoticeable

How can you use “unnoticeable” in a sentence? Here are some example sentences to help you improve your vocabulary:

(The Post says one to two minutes until loss of consciousness--at 30,000 feet--and the NYT says the loss of cabin pressure could have been gradual and therefore virtually unnoticeable.)
It was startling to me how unnoticeable the attractions below the neck became without a personality to avow them.