Optimal

Part of speech: adjective

Pronunciation: /ˈɒptɪməl/

Definitions

1. Most favorable or desirable; achieving the best possible outcome under given circumstances
2. The most favorable condition or choice that yields the highest efficiency or success in a particular context
3. Providing the best possible results or outcomes in a specific situation

Etymology: "Optimal" is built from Latin "optimus", meaning "best", with the English suffix "-al" attached. The Latin superlative sits behind a whole family of English words, including "optimum" and "optimist", so "optimal" is the adjectival branch of that family. The suffix "-al" is a common English addition to Latin-derived stems, turning a noun or adjective into a relational adjective, so "optimal" means something like "relating to the best." The Latin "optimus" itself is a superlative formed from the root "opt-", related to "ops" (wealth, resources) and to the idea of wishing or choosing, and it is the superlative of "bonus" in its older form "opt-" stem. Because it is a superlative, its underlying sense is "most excellent" rather than simply "good," which is why "optimal" carries the sense of an absolute best rather than a merely satisfactory outcome.

Synonyms: best, ideal, most favorable

Antonyms: suboptimal, worst