hidden /ˈhɪd.(ə)n/adjective 2noun 1forms 3phrases 1 adjective2 •in a place where no one can see ithidden treasure; hidden talents •Obscure. noun1 •A hidden answer clue; one in which the letters of the solution appear consecutively in the wordplay.Hiddens are indicated thus; (e.g.) Grow (maraudinG ROWdies). — 1975 formshiddens · more hidden · most hidden Phrases with hidden hidden in plain sightSeemingly hidden, but actually not hidden and easy to find.