The quality or state of being amendable; the capacity to be amended or corrected.
From 'amendable' plus the suffix '-ness' (state of being). This noun form describes the property of being susceptible to amendment or correction.
Amendableness is important in law and policy—it means there's a built-in way to fix mistakes or improve things. A constitution with good amendableness can evolve with society rather than becoming obsolete.
Complete word intelligence in one call. Free tier — 50 lookups/day.