I. hid ‧ den 1 /ˈhɪdn/ BrE AmE
the past participle of ↑ hide
II. hidden 2 BrE AmE adjective
1 . difficult to see or find:
the use of hidden cameras
Some areas can hold hidden dangers for dogs.
the hidden meaning behind his words
Be on the lookout for hidden costs in hotel bills.
2 . not easy to notice or realize:
He wants each pupil to have the chance to discover hidden talents.
3 . hidden agenda the secret purpose behind a plan or activity that you do not tell other people about – used to show disapproval:
Voters suspected a hidden political agenda.
Was there a hidden agenda behind this decision?