Origin of demonstrableMiddle English and Old French from Classical Latin demonstrabilis
- Capable of being demonstrated or proved: demonstrable truths.
- Obvious or apparent: demonstrable lies.
- de·mon′stra·bil′i·ty de·mon′stra·ble·ness
(comparative more demonstrable, superlative most demonstrable)
- Able to be demonstrated.
- It is demonstrable that water extinguishes fire.