Unpretentious (adjective)

1. Not making a show of one's abilities or achievements; modest.
2. Not affected or trying to impress others; natural.

Origin:

Early 19th century: from un- (expressing negation) + pretentious.

Examples:

1. An unpretentious restaurant with good food.
2. He was unpretentious and easy to talk to.
3. The hotel was unpretentious and comfortable.
4. An unpretentious approach to design.
5. Her unpretentious style of dress.