- 稳定性 wěndìngxìng stabilitystability; stabilization
- 不确定性 bùquèdìngxìng uncertaintythe state of being unsure or the quality of being unreliable; uncertainty; indeterminacy
- 决定性 juédìngxìng decisivethe quality of having a decisive or conclusive effect; decisiveness
- 确定性 quèdìngxìng certaintythe quality of being definite or certain; determinacy; definiteness
- 坚定性 jiāndìngxìng firmnessfirmness; steadfastness; staunchness
- 固定性 gùdìngxìng fixity; fixednessthe state or quality of being fixed, stable, or permanent
- 安定性 āndìngxìng stabilitystability; state of being stable or invariable
- 不确定性原理 bùquèdìngxìngyuánlǐ uncertainty principleHeisenberg's uncertainty principle, formulated in 1927
- 不定性 bùdìngxìng uncertaintyuncertainty; indeterminacy; inconstancy
- 定性分析 dìngxìngfēnxī qualitative analysisIdentifying the chemical components of a substance or analyzing the non-numerical characteristics and nature of a phenomenon; opposite of [[定量分析|定量分析|ding4 liang4 fen1 xi1]]
- 定性理论 dìngxìnglǐlùn qualitative theorythe branch of theory focused on qualitative properties rather than numerical quantities