optimal
adjective
op·ti·mal
ˈäp-tə-məl 
: most desirable or satisfactory : optimum
the optimal use of class time
the optimal dosage of medication for a patient
conditions for optimal development
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 optimal level of caffeine intake for all sources was about 300 mg per day.
—
New Atlas, 15 Feb. 2026
Plants need to be grown near like-minded plants for optimal growth and health.
—David Beaulieu, The Spruce, 15 Feb. 2026
This WanderFull crossbody purse features a soft, plush fabric, convenient zippered-pockets for optimal storage, and that iconic water bottle-cradling interior.
—Alyssa Morin, InStyle, 15 Feb. 2026
The optimal version of the Tigers includes those two pitchers at their best.
—Cody Stavenhagen, New York Times, 14 Feb. 2026
See All Example Sentences for optimal
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New Atlas, 15 Feb. 2026
Plants need to be grown near like-minded plants for optimal growth and health.
—David Beaulieu, The Spruce, 15 Feb. 2026
This WanderFull crossbody purse features a soft, plush fabric, convenient zippered-pockets for optimal storage, and that iconic water bottle-cradling interior.
—Alyssa Morin, InStyle, 15 Feb. 2026
The optimal version of the Tigers includes those two pitchers at their best.
—Cody Stavenhagen, New York Times, 14 Feb. 2026
See All Example Sentences for optimal
Cite this Entry
“Optimal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optimal. Accessed 18 Feb. 2026.
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Medical Definition
optimal
adjective
op·ti·mal
ˈäp-tə-məl
: most desirable or satisfactory : optimum
optimal concentrations of a drug
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