suboptimal
Americanadjective
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
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.
“Individual stories of altered and suboptimal miscarriage management emerged quickly in the days following Dobbs, including several overtly tragic examples,” he said.
From Salon • May 26, 2026
“In crisis moments, people tend to make suboptimal decisions,” said Shah.
From MarketWatch • Mar. 4, 2026
It’s just that sometimes it’s optimal to be suboptimal.
From The Wall Street Journal • Jan. 12, 2026
"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 • Dec. 19, 2025
“Why say suboptimal? Why not say what you really are? Thoughtless and confusing and manipulative?”
From "We Were Liars" by E. Lockhart
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
