finiteness; finitude
Abstract noun referring to the quality of being finite, limited, or having bounds. Used in philosophical, mathematical, and general contexts.
Accepting human finiteness is a step toward maturity.
This theory assumes the finiteness of resources.
無限 means 'infinite' or 'unlimited', the opposite of 有限. 無限性 is the corresponding abstract noun for 'infiniteness'.
Compound of 有限 (ゆうげん, 'finite') + 性 (せい, '-ness, -ity'), forming an abstract noun meaning 'finiteness'.