noun
potential for growth; expandability; possibility
Refers to the capacity for future development, expansion, or improvement. Often used in business, technology, and personal contexts.
この事業には大きな発展性がある。
This business has great potential for growth.
新しい技術はまだ発展性を秘
The new technology still holds potential for development.
将来性 also means 'future potential', but is more often used for people or careers, whereas 発展性 is common for projects, technologies, or markets.
Compound of 発展 (development) + 性 (nature, -ity). The exact historical derivation is straightforward; the word follows a common pattern for forming abstract nouns indicating a quality or potential.