1 faint, dim, obscure, vague, blurred, blurry, filmy, hazy, misty, bleary, shadowy, fuzzy, foggy, murky, muddy, unclear, indiscernible, illegible, muffled, unintelligible, indistinguishable, indeterminate, confused, indefinite:
I could barely make out an indistinct figure in the dark. The writing on the matchbox was indistinct
2 indistinguishable, ambiguous, not distinct, equivocal, inseparable, ill-defined, undefined, nebulous, vague, confused:
The identity of the three brothers is indistinct in my mind.