otherwise engaged
busy doing something else
adj
Having agreed to marry a particular person (one's fiancé or fiancée) or each other.
Busy or employed.
Dig if you will the picture / Of you and I engaged in a kiss / The sweat of your body covers me / Can you my darling / Can you picture this?
Greatly interested.
(of a telephone) Already involved in a telephone call when a third party calls.
I tried calling, but she (or her phone) was engaged.
attached to a wall or sunk into it halfway