First and Optimal

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

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

Nearby Word: firstly

Optimal adjective - Most desirable possible under a restriction expressed or implied.

First and optimal are semantically related. Sometimes you can use "First" instead an adjective "Optimal".

Nearby Words: optimum, optimization, optimize, optimise, optimally