1. capable of being extended, stretched, or made longer

Examples

• The extendible ladder can reach up to twenty feet.
• This dining table has an extendible leaf for larger gatherings.
• The telescope features an extendible tripod for better stability.
• The warranty includes extendible coverage for an additional fee.
• The software has an extendible architecture that allows for custom plugins.
• Her extendible measuring tape made the job much easier.