What is another word for "bigwig"?

Roget's Thesaurus (1911) lists these synonyms for "bigwig": academician, academist, admirable, age, and, antiquarian, antiquary, archaeologist, authority, bibliomaniac, bibliophile, bluestocking, bookworm, clerk, connoisseur, doctor, doctrinaire, don, education, emeritus, esprit, expert, feet, fellow, fort, genius, glossographer, good, gownsman, graduate, grammarian, illuminati, intellectual, learned, learner, learning, lexicographer, lexicologist, light, linguist.