What does "indistinct" mean?

Indistinct: Obscure to the mind or senses; not clear; not definite; confused; imperfect; faint; as, indistinct vision; an indistinct sound; an indistinct idea or recollection. When we come to parts too small four our senses, our ideas of these little bodies become obscure and indistinct. I. Watts. Their views, indeed, are indistinct and dim. Cowper.