1. Not on a regular route of a transportation system
   "an off-line ticket office" 
2. Not connected to a computer network
   "off-line resources"

Antonym: on-line

Encyclopedia: Off-line

• hemostasis
• hemostat
• hemostatic
• hemothorax
• hemp
• hemp agrimony
• hemp family
• hemp nettle
• hemp willow
• hempen
• hempen necktie
• hemstitch
• hemstitching
• hen
• hen harrier
• hen hawk
• hen party
• hen yard
• hen-of-the-woods
• hen-peck
• henbane
• henbit
• hence
• henceforth
• henceforward