1) Brand-new 2) Experimental 3) Green 4) In the experimental stage 5) Inexperienced 6) Like most orphan drugs 7) Not examined 8) Not tried 9) Not tried or proven 10) Not yet tried 11) Novel 12) Unproven 13) Unseasoned 14) Untried 15) Yet to be tried 1) Green 2) Inexperienced 3) New 4) Original 5) Raw 6) Theoretic 7) Unproven 8) Untried 9) Unverified 
[adj] - not yet proved or subjected to testing
untried adjective not yet proved or subjected to testing; `an untested drug`; `untested theory`; `an untried procedure`