Definition of complainant in English:


Pronunciation /kəmˈplānənt/ /kəmˈpleɪnənt/

Translate complainant into Spanish


British Law
  • A plaintiff in certain lawsuits.

    ‘Both the complainant and the defendant were in the witness box over two days.’
    • ‘The jury had every opportunity to assess the credibility of the witnesses, both complainants and appellant.’
    • ‘The appellant met all three complainants in turn on that beach.’
    • ‘In the event, no evidence was given by the complainant or the appellant about these matters.’
    • ‘One problem is a justice system that fails young people, both complainants and defendants.’
    • ‘The role of active citizenship would be amply demonstrated, without having to afford complainants full legal party status.’
    • ‘The jury had seen the three complainants in the witness box for an extensive period.’
    • ‘The taxi driver gave evidence that the complainant was crying and upset throughout the journey.’
    • ‘The purpose of the Tribunal is not confined to matters between the complainant and the solicitor.’
    • ‘The Act established procedures for resolving minor complaints informally, if complainants agree to this.’
    • ‘Mr Howell stated he was unsure as to whether the complainant would withdraw his complaint.’
    • ‘The appellant knew how he had behaved towards the complainants.’
    • ‘All of this activity allegedly took place in the presence of both complainants and the accused.’
    • ‘The complainant's credibility is central to the issue of the appellant's guilt.’
    • ‘He now accepts that a reasonable person would think that his conduct would cause the complainants to fear that violence would be used.’
    • ‘The judge then questioned the complainant, asking questions upon the topics which he had been asked to.’
    • ‘Subsequent board decisions relating to the complaint should be notified to the complainant.’
    • ‘No evidence was to be called for the defence impugning the complainant's reliability.’
    • ‘The delay was in the complainant not reporting it, not in the prosecution failing to prosecute it.’
    • ‘It avoided the necessity of both complainants testifying at his trial.’
    litigator, opponent in law, opponent, contestant, contender, disputant, plaintiff, claimant, complainant, petitioner, appellant, respondent, party, interest, defendant, accused


Late Middle English from French complaignant, present participle of complaindre ‘to lament’ (see complain).