nonevident
/ˌnoʊnvɪˈdɛnt/Definitions
1. adjective
not evident or obvious; not clearly perceivable or discernible
“The signs of the ancient civilization were nonevident due to the dense foliage.”
2. adverb
in a way that is not evident or obvious
“The politician spoke in a nonevident manner, leaving many questions unanswered.”