Standard Lemma guide

overfit

verb · 1 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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1

verb

Meaning 1

To use a statistical model that has too many parameters relative to the size of the sample, leading to a good fit with the sample data but a poor fit with new data.

Definition source: English Wiktionary via Wiktextract

Topics: mathematics, sciences, statistics

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: underfit

History

Etymology

From over- + fit.

Across languages

Translations

8 source translations are retained for this English entry.

  • Chinese Mandarin: 過擬合 /过拟合 (guònǐhé) — statistics: to use a statistical model that has too many parameters
  • Chinese Mandarin: 過適 /过适 (guòshì) — statistics: to use a statistical model that has too many parameters
  • Finnish: ylisovittaa — statistics: to use a statistical model that has too many parameters
  • French: surinterpréter — statistics: to use a statistical model that has too many parameters
  • German: überanpassen — statistics: to use a statistical model that has too many parameters
  • Icelandic: ofmáta — statistics: to use a statistical model that has too many parameters
  • Portuguese: sobreajustar — statistics: to use a statistical model that has too many parameters
  • Spanish: sobreajustar — statistics: to use a statistical model that has too many parameters