Unsparing means “receives no mercy.”
But I prefer just unsparing prose which would be the writing equivalent of the clean kitchen I wish I had. No moldy bread, no stale potato chips, everything organized and wiped clean,
If my prose is bare enough, then I can strip from it the insomnia and the anger and leave only the facts.
The truth without adjectives.
Simple, awful, but so far, still sparing,
Because we have so far, survived.