fundamentality

fundamental +‎ -ity.

fundamentality (uncountable)

1. The state or quality of being fundamental.
   • 2007 August 9, Neal Judisch, “Why ‘non-mental’ won’t work: on Hempel’s dilemma and the characterization of the ‘physical’”, in Philosophical Studies, volume 140, number 3, DOI:10.1007/s11098-007-9142-8:

     For the standard arguments against physicalism […] do not establish the fundamentality of the mental in any case.

• fundamental
• fundamentally
• fundamentalism