complainant complainable • complainer · · · Info · Definitions · Synonyms · Characters · · complainant · · Text Latin · · Script 11 · · Length Definitions · · · (noun) a person who brings an action in a court of law. Synonyms: plaintiff. · · Noun Definition 1 Synonyms · · · plaintiff · · Synonym 1 Characters · · a latin small letter a U+0061 c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074