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
Sockwell Circulator Moderate Graduated Compression Sock Sockwell is a popular compression sock brand, known for its special modular compression zones, targeting four areas of your feet, ankles, and legs for optimal support.
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Jillian Dara, Travel + Leisure, 11 Jan. 2026
The shed can tolerate up to 6 inches of snow, prevents rainwater from pooling, and has engineered air vents that ensure optimal ventilation inside.
—Mariana Best, Better Homes & Gardens, 10 Jan. 2026
Lean into the silhouette with baggy pants for optimal ease and extra comfort.
—Lindy Segal, InStyle, 9 Jan. 2026
Keep the coolant reservoir filled to the proper levels to make sure the engine runs at an optimal temperature.
—Keenan Thompson, USA Today, 9 Jan. 2026
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Jillian Dara, Travel + Leisure, 11 Jan. 2026
The shed can tolerate up to 6 inches of snow, prevents rainwater from pooling, and has engineered air vents that ensure optimal ventilation inside.
—Mariana Best, Better Homes & Gardens, 10 Jan. 2026
Lean into the silhouette with baggy pants for optimal ease and extra comfort.
—Lindy Segal, InStyle, 9 Jan. 2026
Keep the coolant reservoir filled to the proper levels to make sure the engine runs at an optimal temperature.
—Keenan Thompson, USA Today, 9 Jan. 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 14 Jan. 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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