- 内在美 nèizàiměi inner beautybeauty of spirit, including character, temperament, and moral qualities; often contrasted with [[外在美|外在美|wai4 zai4 mei3]]
- 内在性 nèizàixìng internalitythe state of being internal or inherent; immanence; interiorness
- 内在论 nèizàilùn immanentism(philosophy) the belief that the divine or metaphysical exists within the material world
- 内在坐标 nèizàizuòbiāo intrinsic coordinatesintrinsic coordinates in geometry
- 内在几何学 nèizàijǐhéxué intrinsic geometrythe study of the geometric properties of a surface or space that do not depend on how it is positioned within a higher-dimensional space
- 内在几何 nèizàijǐhé intrinsic geometry
- 内在超越 nèizàichāoyuè inner transcendencethe process of achieving perfection through one's own inner moral cultivation, particularly as taught in Confucianism
