indistinguishable Synonyms

identical undistinguishable impossible to tell apart twin tantamount synonymous similar shadowy selfsame same obscure noteless matching like isotropic isoperimetrical undifferentiated uniform difficult to tell apart unobservable like peas in a pod unrecognizable unclear like two peas in a pod unnoticeable monovular look-alike unintelligible undefined unnoticed ill-defined vague invisible interchangeable hazy fuzzy faint equivalent equiponderous equal duplicate dim corresponding confused comparable blurry blurred bleary homogeneous homologous