1. not able to be broken down into simpler or constituent parts
Usage: formal; technical
2. in mathematics and logic, unable to be expressed as a product or combination of simpler elements
Usage: mathematics; logic

Examples

• The ancient artifact was considered indecomposable and had to be preserved in its original form.
• In chemistry, some compounds are indecomposable under normal laboratory conditions.
• The mathematician proved that the algebraic structure was indecomposable.
• Certain polymers are designed to be indecomposable to prevent environmental degradation.
• The logical statement was shown to be indecomposable into simpler propositions.
• Indecomposable materials present challenges for recycling programs.