He was almost completely unschooled.
他几乎没上过学。
柯林斯例句
She is unschooled in the way of the world.
她不懂人情世故;她丝毫不懂世态炎凉.
互联网
He is completely unschooled in politics.
他对政治一窍不通.
互联网
"untaught people whose verbal skills are grossly deficient"
"an untutored genius"
"uneducated children"