Antonyms of noun defendant

1 sense of defendant

Sense 1
defendant, suspect -- (a person or institution against whom an action is brought in a court of law; the person being sued or accused)
       Antonym of plaintiff (Sense 1)
      => plaintiff, complainant -- (a person who brings an action in a court of law)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun defendant

1 sense of defendant

Sense 1
defendant, suspect -- (a person or institution against whom an action is brought in a court of law; the person being sued or accused)
       => litigant, litigator -- ((law) a party to a lawsuit; someone involved in litigation; "plaintiffs and defendants are both litigants")