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.
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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.