Accentlessness is when you speak a language so purely that you have no unique way of pronouncing anything, also known as being mute.
"Yeah I think I'm accentless."
"Bro you just made me unmute with that bs."
When a dumbass tries to type instead.
In some rare cases it's a poorly typed version of unsteady
I ate salmon unstead of cod.
That stream is very unstead.