apeiros describes the milk-sharing person as lacking acquaintance with the word of righteousness.

The attested use describes a person who shares milk as lacking acquaintance with the word of righteousness.

1. Lacking acquaintance in a stated relation · dominant

   In Hebrews 5:13, the nominative singular masculine adjective describes everyone who shares milk in relation to “the word of righteousness”; the APB renders the clause “is unacquainted with the word of righteousness.”

   Hebrews 5:13

In the Anselm Project Bible: In Hebrews 5:13, the APB presents the adjective through “is unacquainted with” in the clause about the word of righteousness.