Primary and Rock-bottom

Primary adjective - Coming before all others in importance.

Rock-bottom and primary are semantically related In some cases you can use "Rock-bottom" instead an adjective "Primary".

Nearby Words: prime, prim, primarily, primal

Rock-bottom adjective - Of, relating to, or located at the bottom.

Primary and rock-bottom are semantically related in bottom topic. Sometimes you can use "Primary" instead an adjective phrase "Rock-bottom", if it concerns topics such as lowest.