Not charged with the duty of excise; not subject to the payment of excise.
The Century Dictionary (Public Domain)
Use "unexcised" in a sentence
"They've created these cancerous entities that are completely self-perpetuating and if left unexcised, will completely destroy the host (tax payers)."
"For months this unexcised distillation never ceases."
"Europe, advancing in distant regions, still allows to exist in her own side, unexcised, a sore that may yet drain her life-blood; still leaves in recognized dominion, over fair regions of great future import, a system whose hopelessness of political and social improvement the lapse of time renders continually more certain, -- an evil augury for the future, if a turning tide shall find it unchanged, an outpost of barbarism ready for alien occupation."