optimal

optimus (Latin)

Best; very good.

-al (English)

(organic chemistry) Forms the names of aldehydes. Forming nouns, especially of verbal action.. Of or pertaining to. Adjectival suffix appended to various words, often nouns, to make an adjective form. Often added to words of Latin origin, but used with other words also.

optimal (English)

(artificial intelligence) Describing a search algorithm that always returns the best result.. The best, most favourable or desirable, especially under some restriction.