Undivided and Unreduced

Undivided adjective - Not divided or scattered among several areas of interest or concern.

Unreduced and undivided are semantically related In some cases you can use "Unreduced" instead an adjective "Undivided".

Unreduced adjective - Not altered by reduction.

Undivided and unreduced are semantically related in complete topic. You can use "Undivided" instead an adjective "Unreduced", if it concerns topics such as total.