The word immaculate is an adjective describing something as free from stain, spot, impurity, fault, or flaw; clean, spotless.

The immaculate kitchen led me to think that they never prepared meals here.

Your hair is immaculate, how do you keep it like that?

Jesus was conceived by immaculate conception.

This is an immaculate sentence.

No, the word 'impeccable' is an adjective, a word to describe a noun as in accordance with the highest standards of propriety; faultless. For example:

• impeccable manners
• an impeccable kitchen

The noun form for the adjective impeccable is impeccability.