Acceptable or permissible according to conscience: "Ignoring [disadvantaged minorities] is no more conscionable today than it was in the riot-scorched America of 20 years ago"(Christian Science Monitor).
Conscientious; principled.
[Obsolete conscions (variant of conscience) + -able.]
Main Entry: con·scio·na·ble Pronunciation: 'kän-ch&-n&-b&l Function: adjective : guided by conscience : characterized by fairness and justice —compare UNCONSCIONABLE —con·scio·na·bil·i·ty/"kän-ch&-n&-'bi-l&-tE/noun