vague; indistinct; fuzzy · to blur; to obscure; to confuse; to mix up

The meaning of this sentence is obscure.

For centuries, astronomers believed that the Milky Way made up the entire universe. Hubble was among the first to show that the fuzzy patches in the sky seen through telescopes were other galaxies, not distant parts of the Milky Way.

This paragraph is vague.

She gave us a vague answer.

I recall less and less of my childhood.