underfit

U1N1D2E1R1F4I1T1

verb

To use a statistical model that has too few parameters relative to the size of the sample.

Opposite
overfit
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Meanings

verbunderfit (third-person singular simple present underfits, present participle underfitting, simple past and past participle underfitted)

present singular third person underfits · participle present underfitting · participle past underfitted · past underfitted

  1. mathematicsTo use a statistical model that has too few parameters relative to the size of the sample.

    Antonyms: overfit

Synonyms & antonyms

verbTo use a statistical model that has too few parameters relative to the size of the sample.

Opposite
overfit

Origin

From under- + fit.

Full word history & related roots →

Rhymes & wordplay

Anagrams

unrifted
Cite this entry
APA

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

MLA

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

Chicago

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

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