Noun
inhibitions - A feeling of self-consciousness or restraint that prevents someone from acting freely; a psychological or social barrier that limits a person’s behavior or expressions.
His inhibitions kept him from speaking up during the meeting, even though he had great ideas.
semblance - The way something appears on the surface, often without revealing the true nature or reality behind it.
In spite of their their kids' constant uncontrolled behavior, when they were outside they managed to keep up the semblance of calm, even though things were not so calm inside their house.