Adiaphorous
Adiaphorous (ad`i*af"o*rus) , adjective
[Greek 'adia`foros; 'a priv. + dia`foros different; dia` through + fe`rein to bear.]
1.
Indifferent or neutral. — Jer. Taylor
2.
(Medicine) Incapable of doing either harm or good as a medicine. — Dunglison