Definition of indemonstrable
: incapable of being demonstrated : not subject to proof
indemonstrablyplay \ˌin-di-ˈmän(t)-strə-blē, (ˌ)in-ˈde-mən-strə-\ adverb
First Known Use of indemonstrable
Seen and Heard
What made you want to look up indemonstrable? Please tell us where you read or heard it (including the quote, if possible).