indiscernible

the difference between the two colors is almost indiscernible.

her voice was so soft that it became indiscernible in the crowd.

the boundaries of the two countries are indiscernible on the map.

he spoke in an indiscernible manner, making it hard to understand.

the changes in the landscape were indiscernible over time.

in the dim light, her features became indiscernible.

the sound was so faint it was indiscernible to the human ear.

his expression was indiscernible, leaving everyone guessing.

the details of the painting were indiscernible from a distance.

her emotions were indiscernible, hidden behind a calm facade.