Incomparable lucidity and penetrativeness
Inconceivable clumsiness of organization
Indulge a train of gentle recollection
Indulging a sickly and nauseating petulance
Ineffably dreary and unpicturesque
Infected with a feverish dissatisfaction
Infuse a wholesome terror
Inimical to true and determined principle [Inimical = harmful; adverse]
Inimitable grace and felicity [inimitable = defying imitation; matchless]
Injudicious and inelegant ostentation