tranquil

A tranquil place or situation is calm and peaceful, free from noise or disturbance. It's a feeling that can make you relax and feel at ease.

You might hear someone describe a forest as tranquil, because it's so quiet and still, with only the sound of birds chirping. Or maybe they'll say their backyard is tranquil after they've put up a fence to block out traffic noise from the street. People often use the word tranquil when talking about travel destinations too - "This beach resort is really tranquil, perfect for a relaxing vacation." It's also used in music and art - a peaceful piano piece might be described as tranquil, or an abstract painting with soothing colors could evoke a sense of tranquility.