optimal

adjective

op·​ti·​mal ˈäp-tə-məl How to pronounce optimal (audio)
Synonyms of optimalnext
: most desirable or satisfactory : optimum
the optimal use of class time
the optimal dosage of medication for a patient
conditions for optimal development
optimality noun
optimally adverb

Examples of optimal in a Sentence

He keeps his engine tuned for optimal performance. Under optimal conditions, these plants grow quite tall.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Loudermilk says this is crucial to ensure your coils are running efficiently and at optimal performance. Ashlyn Needham, Southern Living, 8 Mar. 2026 Above the bed, an oval skylight provides direct views of the night sky for optimal stargazing from the comfort of the bed. New Atlas, 6 Mar. 2026 The team called for more high-quality clinical trials examining long-term outcomes, optimal dosages and differences between collagen sources, such as marine, bovine and plant-based alternatives. Deirdre Bardolf, FOXNews.com, 5 Mar. 2026 Supplements including fat-soluble vitamins, calcium carbnate, curcumin, omega-3s, and coenzyme Q10 (CoQ10) should be taken with a meal that includes fat to ensure optimal absorption. Jessica Swirble, Verywell Health, 5 Mar. 2026 See All Example Sentences for optimal

Word History

Etymology

optim(um) + -al entry 1

First Known Use

1890, in the meaning defined above

Time Traveler
The first known use of optimal was in 1890

Browse Nearby Words

Cite this Entry

“Optimal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optimal. Accessed 10 Mar. 2026.

Kids Definition

optimal

adjective
op·​ti·​mal ˈäp-tə-məl How to pronounce optimal (audio)
optimally adverb

Medical Definition

optimal

adjective
op·​ti·​mal ˈäp-tə-məl How to pronounce optimal (audio)
: most desirable or satisfactory : optimum
optimal concentrations of a drug
optimality noun
plural optimalities
optimally adverb

More from Merriam-Webster on optimal

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