2 adjectives to describe sophistication

Bacon's focus of attention on the substance of poetry is in keeping with his attack on mere sophistication of style in rhetoric.

Accustomed to an elaborate sophistication, the singular union of refinement and nature caught his fancy; for the English seldom see the last separated from vulgarity; and when it is found, softened by a high intelligence and polished manners, it has usually great attractions for the biasés.

2 adjectives to describe  sophistication