uncoach verb2 •To unteachFollowing my run with him, I was less concerned about his physical skills and strength as I was unwiring or uncoaching what had been imprinted into his mind. — 2014 •(no longer used) To detach from a coach (vehicle).These, here arriv'd, the mules uncoach'd, and drave Up to the gulfy river's shore, that gave Sweet grass to them. — 1614 formsuncoached · uncoaching · uncoaches