optimal

US /ˈɑptəməl/

UK /ˈɒptɪməl/

B2
adj.AdjectiveBest or most desirable; best possible
This is the optimal season for growing vegetables
adj.AdjectiveMost conducive to a favorable outcome.
The plants grew best under optimal conditions of sunlight and moisture.
adj.AdjectiveRelating to a solution that is the best possible within given constraints.
The algorithm provides an optimal solution to the problem.

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