indiscernible

Definitions

Impossible to see, hear, or perceive clearly.

Difficult to distinguish or differentiate from something else.

Examples

The difference between the two shades of blue was almost indiscernible to the naked eye.

He spoke in a low murmur that was nearly indiscernible over the roar of the crowd.

The ancient ruins had weathered so much that the original carvings were now completely indiscernible.

Synonyms

imperceptible indistinguishable invisible unnoticeable faint obscure vague

Antonyms

perceptible distinguishable visible noticeable obvious clear distinct