ἀπαραβίαστος

From LSJ

ἀσκέειν, περὶ τὰ νουσήματα, δύο, ὠφελέειν, ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm

Source

Spanish (DGE)

-ον que no puede ser forzado, inviolable Polystr.p.88.