1. 堡垒
2. 要塞
3. 牢固（性）
4. 不褪色（性）
5. 据点
6. 固定（性）
7. 迅速
8. 抗（毒）性
9. 放荡
10. 坚固
11. 坚牢
12. 固着
13. 【纺】坚牢度
14. 急速
15. 巩固
16. 可靠（性）

1. a rate (usually rapid) at which something happens;

   "the project advanced with gratifying speed"
   

2. the quality of being fixed in place as by some firm attachment

3. a strongly fortified defensive structure

1.堡垒;要塞
Afastness is a place, such as a castle, which is considered safe because it is difficult to reach or easy to defend against attack.

e.g. They could have withdrawn into the mountainfastness of Eryri.
他们本可退到山中要塞埃利里去。

1. 坚牢度：并且当C.I.颜料蓝15:6和C.I.颜料紫23结合作为颜料时,能够形成蓝色像素,该像素具有优越的光谱透射率特性和高鲜艳度(vividness)、亮度和透明度,以及各种最优越的坚牢度(fastness)性质,例如耐光性、

2. fastness的翻译

2. 牢度：并且当C.I.颜料蓝15:6和C.I.颜料紫23结合作为颜料时,能够形成蓝色像素,该像素具有优越的光谱透射率特性和高鲜艳度(vividness)、亮度和透明度,以及各种最优越的坚牢度(fastness)性质,例如耐光性、

3. fastness的反义词

3. 迅速;牢固;不褪色：fastmultiplier 快速乘法器 |fastness 迅速;牢固;不褪色 |fastnesstoalkali 耐碱度

4. 牢固：fastish 爱快速的 |fastness 牢固 | fastopen 快速打开文件

• He lured the Scottish Army away from its fastness at Stirling.

  出自：C. Hill

• It never does the academic fastnesses real harm to be shaken.

  出自：fig.