complainant

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complainant

/kəmˈpleɪnənt/

Where it comes from

From Old French complaignant, present participle of complaindre.

noun complainants · complainaunt

One who makes complaint, one who complains. 1708-1714 Jeremy Collier, Ecclesiastical History of Great Britain Eager complainants […] in the dispute.
The party that brings a civil lawsuit against another; the plaintiff.
Similar: claimant
An alleged victim in a criminal investigation or trial.
Similar: plaintiff

Opposite: defendant, respondent

Thesaurus

Closest in meaning: plaintiff, appellant, prosecution, petitioner, petition, applicant, claimant, claim, ombudsman, requisitioner, requester, requestor, proponent, proposer, requiring, client

noun

Opposite: defendant, respondent

Translations

Every language

noun plaintiff

Español	demandante, querellante
Kiswahili	mlalamishi
Français	plaignant
Русский	исте́ц istéc
العربية	شَاكٍ šākin

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MLA

"complainant." Wiktionary, via Micwyn, micwyn.com/word/complainant. Accessed 6 Nov. 2026.

APA

complainant. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/complainant

Chicago

"complainant." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/complainant.

BibTeX

@misc{complainant_2026,
  title = {complainant},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/complainant},
  urldate = {2026-11-06}
}