hidden

About 23.13 uses per million words.

Meaning

1. verb past participle of hide
2. adjective Located or positioned out of sight; not visually apparent.

   hidden treasure; hidden talents

3. adjective Obscure. (Can we add an example for this sense?)
4. noun A hidden answer clue; one in which the letters of the solution appear consecutively in the wordplay.

Similar words

out of sight obscure secret invisible unseeable buried concealed latent subtle occult

Often followed by

in from by behind under and away beneath within

Word family

hiddenness hiddennesses