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Synonyms

optimal

American  
[op-tuh-muhl] / ˈɒp tə məl /

adjective

  1. optimum.


optimal British  
/ ˈɒptɪməl /

adjective

  1. another word for optimum

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms


Etymology

Origin of optimal

First recorded in 1885–90; optim(um) + -al 1


Compare meaning

How does optimal compare to similar and commonly confused words? Explore the most common comparisons:


Explanation

Something that's optimal is the best or most favorable for a given situation. Flowers? Check. Chocolates? Check. Dinner reservation? Check. Sounds like you have the optimal conditions for a successful anniversary date. There's an implication with optimal that certain restrictions exist in a given situation, so that what is optimal isn't necessarily the ideal scenario — it's the best one given those limitations. For example, optimal population levels for a species are not the highest levels — instead they're the best levels that a particular environment can sustain. Often the word optimum is used interchangeably with optimal.

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Vocabulary lists containing optimal

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The optimal range was 5,000 to 7,500 steps daily, after which the effect plateaued.

From Science Daily ● Oct. 19, 2026

That is not to say that you’ve done it perfectly, because there are thousands of decisions to make along the way and not all of them can be absolutely optimal.

From MarketWatch ● Oct. 15, 2026

It’s now probably closer to 6,000, far more than the 1,500 deemed optimal for wildlife management and tick control.

From Los Angeles Times ● Oct. 4, 2026

The optimal number is zero, to judge from a new report into the fiasco of a Federal Reserve building project.

From The Wall Street Journal ● Sep. 30, 2026

“They are confirming your calculations, Guardian. They say the conditions are not optimal for flight.”

From "A Rover's Story" by Jasmine Warga

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