1. not easily understood, seen, or recognized; not apparent or clear
2. requiring insight or careful thought to understand or discover
Usage: often used in technical or academic contexts

Examples

• The solution to the puzzle was nonobvious and required creative thinking.
• Her nonobvious approach to the problem impressed the entire team.
• The connection between the two events was nonobvious at first glance.
• The artist’s nonobvious use of color created a striking visual effect.
• The nonobvious flaws in the design weren’t discovered until later.
• His nonobvious talent for music only emerged after years of practice.