Lying; resting; reclining; recumbent; superimposed; superincumbent.
- Imposed as an obligation or duty; obligatory: felt it was incumbent on us all to help.
- Lying, leaning, or resting on something else: incumbent rock strata.
- Currently holding a specified office: the incumbent mayor.
- A person who holds an office or ecclesiastical benefice: The incumbent was reelected to another term.