1. Morally binding or necessary
   "it is incumbent on me to attend"

See also: irremissible, obligatory

• presbyacusis
• presbycousis
• presbycusis
• presbyope
• presbyopia
• presbyopic
• presbyter
• presbyterate
• presbyterial
• Presbyterian
• Presbyterian Church
• Presbyterianism
• presbytery
• Presbytes
• Presbytes entellus
• preschool
• preschooler
• prescience
• prescient
• presciently
• prescind
• Prescott
• prescribe
• prescribed
• prescript