Grammatically, 'quiet' should be 'quietly', which is an adverb. The adjectives are old and new.
Both. In the sentence "Are you still here?", it is an adverb; in the sentence "The water was quiet and still", it is an adjective.
The correct spelling of the adjective is silent(quiet).
the big quiet classroom was freakishly awkward
The muffler makes your car run quiet
The resonator is a "muffler" used in the turbocharger plumbing to quiet the turbo noise.The resonator is a "muffler" used in the turbocharger plumbing to quiet the turbo noise.
Car is a noun. Jim's is a proper possessive noun that serves as an adjective.
The adjective of noise would be noisy. This is used in English.
A quiet weekend away from everything; that's what I need.
There is none. quiet is an adjective.
quiet
By replacing it with a quieter muffler.
Quietly is an adverb, based on the adjective quiet.