Definition of optimal in US English:

optimal

adjective

  • Best or most favorable; optimum.

    ‘seeking the optimal solution’
    • ‘A good short story is a fictional vision which, in its optimal form, happens to have a short page count.’
    • ‘All of these together create an optimal smile and are part of the complete look.’
    • ‘The key is determining the optimal time to move from an internal to an external audit.’
    • ‘I just need to fiddle around with it to get it in the optimal listening order.’
    • ‘Isn't optimal application of the laws of the game the ideal that we should strive for?’
    • ‘The shading requirements also seem to be less than optimal to keep the summer sun off walls.’
    • ‘This level of iron store is about twice as much as the optimal iron store for normal adults.’
    • ‘Nominating either more or fewer candidates than the optimal number costs a party seats.’
    • ‘These rules do not always give optimal outcomes, although they usually give good ones.’
    • ‘Oral odours are best treated through meticulous oral hygiene and optimal dental care.’
    • ‘Each filler is injected in a different way but, in most cases, two or more syringes will be needed for optimal results.’
    • ‘What are the optimal temperature and light conditions for the germination of these seeds?’
    • ‘If an infant's condition is not as grave as was thought, he will live, and he can then be given optimal care if he has any handicaps.’
    • ‘The optimal solution in my eyes is to have smoking banned in public places except for designated smoking areas.’
    • ‘The optimal time for both starting and stopping treatment is unknown.’
    • ‘Plant two or more rows of the same variety side by side to ensure optimal pollination.’
    • ‘The results indicated that the procedural modification was not optimal for the purpose.’
    • ‘Extraction solutions were then diluted to the optimal range for the ion concentration measurement.’
    • ‘Instead, eat food first, then drink afterwards for optimal health and digestive tract function.’
    • ‘The modern-day emphasis is as much on avoiding illness as on enjoying optimal health.’
    finest, greatest, top, foremost, leading, pre-eminent, premier, prime, first, chief, principal, supreme, of the highest quality, superlative, unrivalled, second to none, without equal, nonpareil, unsurpassed, unsurpassable, peerless, matchless, unparalleled, unbeaten, unbeatable, unexcelled, optimum, ultimate, surpassing, incomparable, ideal, perfect
    View synonyms

Origin

Late 19th century: from Latin optimus ‘best’ + -al.

Pronunciation

optimal

/ˈäptəməl//ˈɑptəməl/