suboptimal

sub·op·ti·mal
S1U1B3O1P3T1I1M3A1L1
US/sʌbˈɑptɪməl/UK/sʌbˈɒptɪməl/

adjective

Worse than optimal; of less than the highest standard or quality.

“Near-synonym: submaximal”

UncommonScrabble 16

Meanings

adjectivesuboptimal (not comparable)

alternative sub-optimal

  1. not comparableWorse than optimal; of less than the highest standard or quality.

    Near-synonym: submaximal

    2 more examples

    A quickly produced suboptimal solution to a problem is often more useful than an optimal one that takes a long time to produce.

    "The way the consultation has been handled is suboptimal," she continued.

    2023 October 4, Mel Holley, “Network News: Conservative MPs criticise ticket office closure plans”, in RAIL, number 993, page 23

    Synonyms: inoptimal, nonoptimal, submaximal

Synonyms & antonyms

adjectiveWorse than optimal; of less than the highest standard or quality.

Also see

Origin

  1. Proto-Indo-European*upó
  2. Proto-Italic*supo
  3. Latinsub
  4. Latinsub-
  5. Englishsub-
  6. Proto-Indo-European*h₁ep-
  7. Proto-Indo-European*h₁éps
  8. Proto-Indo-European*h₁épi
  9. Latinoptimus
  10. Englishoptimal
  11. Englishsuboptimal

From sub- + optimal.

Full word history & related roots →

Translations

Czech suboptimální
  • suboptimálníless than optimal
Finnish alioptimaalinen
  • alioptimaalinenless than optimal
French suboptimal
  • suboptimalless than optimal
German suboptimal
  • suboptimalless than optimal
Greek υποβέλτιστος
  • υποβέλτιστος (ypovéltistos)less than optimal
Indonesian suboptimal
  • suboptimalless than optimal
Italian subottimale
  • subottimaleless than optimal
Malay suboptimum
  • suboptimumless than optimal
Romanian suboptimal
  • suboptimalless than optimal
Russian неоптимальный
  • неоптимальный (neoptimalʹnyj)less than optimal
Spanish subóptimo
  • subóptimoless than optimal
Cite this entry
APA

suboptimal. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/suboptimal

MLA

“suboptimal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/suboptimal. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “suboptimal,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/suboptimal.

Source: suboptimal on Wiktionary, CC BY-SA 4.0.