1. the quality of being natural and sincere; lack of artificiality or pretense
2. lack of skill or knowledge in art or creative endeavors

Examples

• The child’s artlessness made her stories charming and believable.
• His artlessness in conversation put everyone at ease.
• She spoke with such artlessness that no one doubted her honesty.
• The painting’s artlessness was evident in its crude brushstrokes.
• Despite his artlessness as a musician, his enthusiasm was infectious.
• Her artlessness made her seem younger than her actual age.
• The artlessness of his approach actually worked in his favor.