formal

His air was grave and stately, and his manners were very formal.

Bingley, to assure him how happy he would make them, by eating a family dinner with them at any time, without the ceremony of a formal invitation.

Collins, with a formal wave of the hand, “that it is usual with young ladies to reject the addresses of the man whom they secretly mean to accept, when he first applies for their favour; and that sometimes the refusal is repeated a second or even a third time.

When she did come, it was very evident that she had no pleasure in it; she made a slight, formal apology for not calling before, said not a word of wishing to see me again, and was, in every respect, so altered a creature, that when she went away I was perfectly resolved to continue the acquaintance no longer.