1. impossible or very difficult to see, hear, or notice

Examples

• The difference between the two paint colors was indiscernible to most people.
• Her whisper was nearly indiscernible over the noise of the crowd.
• The scratch on the car was so small it was indiscernible without close inspection.
• The changes in temperature were indiscernible to human touch.
• From this distance, the individual features of the building were indiscernible.
• The actor’s accent was so subtle it was indiscernible to the audience.