Optimal and optimum both mean “best or most effective,” as in “plants that grow tall under optimal conditions” and “for optimum results, let the paint dry overnight.” You may consider either adjective …

OPTIMAL definition: optimum. See examples of optimal used in a sentence.

Definition of optimal adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

OPTIMAL meaning: 1. best; most likely to bring success or advantage: 2. best; most likely to bring success or…. Learn more.

1. the most favorable point, degree, or amount of something for obtaining a given result. 2. the most favorable conditions for the growth of an organism. 3. the best result obtainable under specific …

optimal in American English (ˈɑptəməl ) adjective Origin: optimum + -al most favorable or desirable; best; optimum

Dec 30, 2025 · Adjective optimal (not comparable) The best, most favourable or desirable, especially under some restriction. Finding the optimal balance between features and price is a common problem.

the most favorable point, degree, or amount of something for obtaining a certain result. best: optimum conditions for growth. n. the best or most favorable point, degree, amount, etc., as of temperature, …

Optimal refers to the most favorable, desirable or best outcome in a certain situation or condition. It represents the highest degree of effectiveness or efficiency, or the most advantageous point, value …

Under optimal conditions, these plants grow quite tall. Her plants were optimally placed to receive the greatest amount of light.