op·​ti·​mal | \ ˈäp-tə-məl How to pronounce optimal (audio) \

Definition of optimal

: most desirable or satisfactory : optimum the optimal use of class time the optimal dosage of medication for a patient conditions for optimal development

Other Words from optimal

optimality \ ˌäp-​tə-​ˈma-​lə-​tē How to pronounce optimal (audio) \ noun
optimally \ ˈäp-​tə-​mə-​lē How to pronounce optimal (audio) \ 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 The basin-like shape leaves enough space for the optimal amount of noodles and a small pool of sauce. Kendra Vaculin, Bon Appétit, 10 May 2022 In 2002, Ortiz-Monasterio and colleagues at Oklahoma State University introduced farmers to an innovation called a GreenSeeker — a handheld sensor that measures a wheat plant’s chlorophyll levels and recommends an optimal amount of nitrogen. Washington Post, 22 Dec. 2021 From tracking heart rate and step counts with Fitbit to monitoring sleep and optimal rest cycles with Oura, consumers are looking for more information on their health and wellness. John Serri, Forbes, 25 Apr. 2022 That combined with a deep heel cup and roomy toe box ensures that your foot is supported, cushioned, and stabilized for optimal comfort and shock absorption. Emily Belfiore, Travel + Leisure, 21 Apr. 2022 Many indoor growers are actually just manufacturing the same optimal climates that naturally exist in specific regions, particularly in California. Graham Farrar, Rolling Stone, 19 Apr. 2022 According to researchers, the findings show that while three mRNA vaccine doses offer optimal protection against COVID-19, those who received a J&J primary dose may achieve similar protection with an mRNA booster dose. Maggie O'neill, Health.com, 31 Mar. 2022 New research indicates that current vaccines and booster schedules may not provide optimal protection against COVID-19 infection, but top infectious disease experts say that severe side effects, hospitalization and death are still largely prevented. Zee Krstic, Good Housekeeping, 19 Feb. 2022 Osterholm stressed that people should focus on getting optimal protection from the virus with three doses of vaccine. Susannah Cullinane, CNN, 21 Dec. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'optimal.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of optimal

1890, in the meaning defined above

History and Etymology for optimal

optim(um) + -al entry 1

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Time Traveler for optimal

Time Traveler

The first known use of optimal was in 1890

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Last Updated

23 May 2022

Cite this Entry

“Optimal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optimal. Accessed 28 May. 2022.

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More Definitions for optimal


op·​ti·​mal | \ ˈäp-tə-məl How to pronounce optimal (audio) \

Medical Definition of optimal

: most desirable or satisfactory : optimum optimal concentrations of a drug

Other Words from optimal

optimality \ ˌäp-​tə-​ˈmal-​ət-​ē How to pronounce optimal (audio) \ noun, plural optimalities
optimally \ -​mə-​lē How to pronounce optimal (audio) \ adverb


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