4 adjectives to describe insipidity

I am horribly afraid I guess too well the writer of those abominable insipidities of Cornelia, Leonora, and the Ladies' Drawing Room.

The English language had not then attained to that correct insipidity which has been introduced into the more recent literature of the country, to the prejudice, perhaps, of its originality.

There may, perhaps, be too great an indulgence, as well as too great a restraint of imagination; and if the one produces incoherent monsters, the other produces what is full as bad, lifeless insipidity.

He only will please long, who, by tempering the acidity of satire with the sugar of civility, and allaying the heat of wit with the frigidity of humble chat, can make the true punch of conversation; and, as that punch can be drunk in the greatest quantity which has the largest proportion of water, so that companion will be oftenest welcome, whose talk flows out with inoffensive copiousness, and unenvied insipidity.

4 adjectives to describe  insipidity