Synonyms of indistinguishable in English:

indistinguishable


See US English definition of indistinguishable

See UK English definition of indistinguishable

See Spanish definition of indistinguible

adjective

1‘the two girls were indistinguishable’

SYNONYMS
identical, almost identical, the same, alike, very similar
cut from the same cloth, two of a kind, difficult to tell apart
informal as like as two peas in a pod, like Tweedledum and Tweedledee
ANTONYMS

dissimilar, easy to tell apart

2‘in choral music the words are frequently indistinguishable’

SYNONYMS
unintelligible, incomprehensible, hard to understand, hard to make out, indistinct, unclear, indefinite
inappreciable, indiscernible, imperceptible, inaudible
ANTONYMS

clear, distinguishable