| Hidden |
| Secret |
| Veiled |
| Hush-hush |
| Disguised |
| Concealed |
| Underlying |
| Clandestine |
| Under wraps |
| Game shelter |
| Not apparent |
| Surreptitious |
| Hugger-mugger |
| Want selfishly |
| Kind of action |
| On the down-low |
| Hidden from view |
| Behind the scenes |
| Concealed, secret |
| Like many CIA ops |
| Like some operations |
| Like a CIA operation |
| Like C.I.A. operations |
| Definitely not apparent |
| Like intelligence, often |
| Concealed — vector (anag) |
| Secret, like CIA operations |
| Like cloak-and-dagger operations |