Obscure

1. adjective

   not clearly understood or expressed; ; -Anatole Broyard; - P.A.Sorokin; - John Locke

   “an obscure turn of phrase”

   Similar: vague

2. verb

   make undecipherable or imperceptible by obscuring or concealing

   “a hidden message”

   Similar: blot out, obliterate, veil, hide

3. verb

   reduce a vowel to a neutral one, such as a schwa

4. adjective

   marked by difficulty of style or expression

   “much that was dark is now quite clear to me”

   Similar: dark