1. not concerned with or engaged in commerce or making profit
2. not likely to be profitable or successful in business

Examples

• The artist’s uncommercial approach focused on creative expression rather than sales.
• His uncommercial films were critically acclaimed but failed at the box office.
• The uncommercial nature of the project made it difficult to find investors.
• She preferred uncommercial music that challenged mainstream tastes.
• The uncommercial venture was funded entirely by grants and donations.
• Their uncommercial attitude toward business often frustrated potential partners.