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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

  • optimality noun
  • optimally adverb
  • superoptimal adjective

Etymology

Origin of optimal

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

Compare meaning

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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.

YouGov now says that tools meant to eliminate data from such respondents – who may have participated and given random answers just to claim the rewards – "were not administered in the optimal way".

From BBC • Mar. 26, 2026

"Adolescence is a key period for building strong bones, and achieving optimal bone mass during this time can reduce lifelong risks of fractures and osteoporosis," said Jessie P. Buckley, Ph.D.,

From Science Daily • Mar. 21, 2026

A bookie needs to close the betting window to this fan while keeping it open an optimal bit longer for fans watching on a screen.

From The Wall Street Journal • Mar. 20, 2026

"Honda believed EVs would be the optimal solution from a long-term perspective. Based on this belief, Honda shifted its strategic direction toward the popularisation of EVs," the firm said.

From Barron's • Mar. 12, 2026

“You’re not feeble. You merely had a suboptimal moment. I’m sure you’ll be optimal from now on.”

From "We Were Liars" by E. Lockhart