Pessimum vs. Optimum — What's the Difference?

A worst or lowest point.

The point at which the condition, degree, or amount of something is the most favorable.

Of an organism's environment; least favorable for survival

(Biology) The most favorable condition for growth and reproduction.

Most favorable or advantageous; best.

The best or most favorable condition, or the greatest amount or degree possible under specific sets of comparable circumstances.

The best or most advantageous; surpassing all others.

Best possible or most desirable; - usually under a restriction expressed or implied; as, an optimum return on capital; optimum concentration of a drug; an optimum result.

The most favorable condition, greatest degree, or largest amount possible under given circumstances.

Most favorable condition or greatest degree or amount possible under given circumstances

Most desirable possible under a restriction expressed or implied;