suboptimal
[ suhb-op-tuh-muhl ]
/ sʌbˈɒp tə məl /
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adjective
being below an optimal level or standard.
QUIZ
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Which of the following nouns has an irregular plural form?
Also sub·op·ti·mum [suhb-op-tuh-muhm]. /sʌbˈɒp tə məm/.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022