nonvisibly
/nɒnˈvɪzɪbli/Definitions
1. adverb
in a way that is not noticeable or visible
“The damage was done nonvisibly, making it hard to detect.”
2. adverb
in a manner that is not observable or perceivable
“The effects of pollution are often nonvisibly felt in rural areas.”
3. adverb
in a way that is not apparent or conspicuous
“The company’s financial struggles were nonvisibly reflected in their declining stock price.”