First and Underived

First adjective - Coming before all others in time or order.

Underived and first are semantically related In some cases you can use "Underived" instead an adjective "First".

Nearby Word: firstly

Underived adjective - Not derived; primary or simple.

First and underived are semantically related in ancient topic. You can use "First" instead an adjective "Underived", if it concerns topics such as basic, earliest.