universality; global nature
Refers to the quality of being worldwide or applicable to the whole world. Often used in academic or formal contexts.
This problem has a global nature.
The universality of the theory was discussed.
国際性 refers to international character or relations between nations, whereas 世界性 is about the quality of being global or universal.
Compound of 世界 (world) and 性 (nature, quality). The exact historical derivation is uncertain, but the word follows a common pattern for abstract nouns.