I think Permissionless should be thesame as Permission-minimized... Or Trustless thesame as Trust-minimized.
I won't be surprised if the "Less" at the end of some Words normally meant the Words are Less, minimal, small etc. The real meaning of the words (words with "Less" attached normally at their ends) probably changed(for whatever reason) as time goes by.
The words probably changed from meaning they are minimal/less/small to they are zero/nothing/negative.
It seems many people have accepted this confusion in English without question. Unfortunately, such confusion can make English really difficult/complicated/confusing.
Permissionless should also mean Permission-minimized... While Trustless should mean Trust-minimized
Related Post:Understanding Permission-Less and Trust-Less
https://bitcointalk.org/index.php?topic=5277053.msg55230270#msg55230270