unknow
/ˈʌnnoʊ/Definitions
1. verb
to be or become unknown or unrecognizable
“The old photo eventually became unknow to most people.”
2. noun
a person or thing that is unknown
“The detective was trying to find the unknow suspect.”
3. adverb
in a way that is unknown or unclear
“The instructions on how to assemble the furniture were given in a way that was unknow to most users.”