obscure

adjective
1

Dark, faint or indistinct.

2

Hidden, out of sight or inconspicuous.

3

Difficult to understand; abstruse.

"an obscure passage or inscription; The speaker made obscure references to little-known literary works."

4

Not well-known.

5

Unknown or uncertain; unclear.

"The etymological roots of the word "blizzard" are obscure and open to debate."

verb
1

To render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious.

2

To hide, put out of sight etc.

3

To conceal oneself; to hide.

Definitions come from the Free Dictionary API (dictionaryapi.dev), with Wiktionary as a fallback when it is slow, and are cached for up to 24 hours.