firmness
noun [ U ] uk/ˈfɜːm.nəs/ us/ˈfɝːm.nəs/
(HARDNESS)
硬度
the quality of not being soft, but not completely hard
The bed's firmness suited him. 床的硬度对他很合适。
(STRENGTH/TIGHTNESS)
紧；有力
the quality of being strong and tight
The firmness of his handshake reassured me. 他紧紧的握手让我打消了疑虑。
(FORCEFUL QUALITY)
严格
the quality of being forceful and making people do what you want
The new teacher has a reputation for firmness. 新老师以严格出名。
(CERTAINTY)
确定;稳定
the quality of being certain and not likely to change