bigwig biguttulate • bigwigged · · · Info · Definitions · Synonyms · Characters · · bigwig · · Text Latin · · Script 6 · · Length Definitions · · · (noun) the most important person in a group or undertaking. Synonyms: kingpin, top banana. · · Noun Definition 1 Synonyms · · · kingpin · · Synonym 1 top banana · · Synonym 2 Characters · · b latin small letter b U+0062 g latin small letter g U+0067 i latin small letter i U+0069 w latin small letter w U+0077