Placid means peaceful and tranquil.
The best synonym for placid would be C. peaceful.
When he says "My will to her consent is but a part; An she agree, within her scope of choice Lies my consent and fair according voice." He is saying here that his consent to Juliet and Paris' marriage is "but a part" of the decision, so he believes that her choice is also needed. He says that, while his "consent and fair according voice" may play a part in her choice, she still has a choice, free will.
It means unwillingness because you refuse which you are not willing to do it
Hamartia of Oedipus is not overcome and the hubris he commits calls his downfall.
Explanation:
The Hamartia, or the fatal flaw is the one flaw of a good protagonist in a tragedy that brings them down and makes their downfall possible.
This characteristic of Hamartia with Oedipus is his will to control. He believes he can control his fate when he really has no way to do so and falls victim to his own machinations.
The Hubris of a character is when the overstep their limits and challenge the will of Gods. In a bid to change his fate Oedipus does just that and in that way he makes the fate only possible.
