suboptimal

American  

[suhb-op-tuh-muhl] / sʌbˈɒp tə məl /

Also suboptimum

adjective

1. being below an optimal level or standard.

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Usage

What does suboptimal mean? Suboptimal means below the optimal (best possible) level or standard.The words optimal and optimum both describe an ideal or perfect level, degree, result, or similar thing. Suboptimal means something has fallen short of that level. It is often used in phrases like suboptimal performance and suboptimal conditions.Example: The patient’s heart is performing at a suboptimal level.

Etymology

Origin of suboptimal

First recorded in 1930–35; sub- + optimal

Example Sentences

Appeared in the December 24, 2025, print edition as 'A Perfect Christmas Is Suboptimal'.

From The Wall Street Journal

"Many older adults in suboptimal health often continue to make valuable contributions to those around them," Han said, "and they also may be the ones to especially benefit from being provided with opportunities to help."

From Science Daily

Also in support was Saban’s fellow commentator Kirk Herbstreit, who at least acknowledged the situation would be suboptimal, but felt Kiffin should be allowed to complete “a magical year.”

From The Wall Street Journal

Rather, it is likely a combination of perverse incentives and suboptimal policies.

From Barron's

There were some things resulting from that that were suboptimal for the rest of the weekend.

From BBC

Related Words

• substandard