onus probandi

noun

The burden of proof, the onus; the duty of a party in a legal proceeding to prove an assertion of fact; it includes both the burden of production and the burden of persuasion.

OriginLatin onus probandī →
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounonus probandi (uncountable)
  1. uncountablelawThe burden of proof, the onus; the duty of a party in a legal proceeding to prove an assertion of fact; it includes both the burden of production and the burden of persuasion.

Synonyms & antonyms

Also see
burden of proof

Origin

  1. Latinonus probandī
  2. Englishonus probandi

Borrowed from Latin onus probandī.

More words from Latin

Full word history & related roots →
Cite this entry
APA

onus probandi. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/onus%20probandi

MLA

“onus probandi.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/onus%20probandi. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “onus probandi,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/onus%20probandi.

Source: onus probandi on Wiktionary, CC BY-SA 4.0.