LURKING

[adjective] [not gradable]As the light improved the boys discovered that the lurking giants were nothing but a field of tree stumps.The device is used to help spot lurking submarines.(figurative) I have some lurking doubts (= doubts which will not go completely away) about whether Simon is really capable of doing this job.(figurative) She said she had a lurking suspicion (= she had a very slight feeling) that he wasn't telling the truth.