Perhaps we are using that word in a way that wasn't intended. The dictionary definition of trustless equates to "
untrustworthy", whereas we use it to mean "
doesn't require trust". If we're going to do better, it may well involve inventing a brand new word. Not exactly easy.
If we perhaps used a prefix like ab-, or "
away", to denote how it's separate from trust. Does anyone like the sound of "
abtrust"?
The ex- prefix tends to denote "
out of", "
apart from" or "
without", so maybe
extrust could be a candidate? Although ex- often carries a negative connotation, so probably not much better than trustless.
Or to go "
around" trust would be to "
circumtrust", but that doesn't really seem to fit our implied meaning.
Then you add the -ful suffix to make it an adjective. Abtrustful, Extrustful, Circumtrustful. Only problem is, such is the nature of language, they're all just gibberish unless people start using them.
It's probably far easier just to use our new definition of trustless. We'll wait for the dictionary to catch up. If we can redefine money itself, changing a word should be simple enough.