Definitions

suboptimal

[suhb-op-tuh-muhl] / sʌbˈɒp tə məl /

ADJECTIVE

below the standard

Synonyms

STRONGEST

substandard

STRONG

subprime

WEAK

insignificant minimal negligible paltry piddling trifling trivial

Antonyms

STRONGEST

excellent flawless highest ideal optimal superlative

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.

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

From The Wall Street Journal • Dec. 23, 2025

Suboptimal nutrition during this stage also may interfere with optimal growth and development.

From Salon • Jan. 19, 2023

Suboptimal cost profile: The project costs too much.

From Time Magazine Archive