dispensable
adjective uk/dɪˈspen.sə.bəl/ us/dɪˈspen.sə.bəl/
可有可无的，非必需的
more than you need and therefore not necessary; that can be got rid of
It seemed the soldiers were regarded as dispensable - their deaths just didn't matter. 那些士兵似乎被认为是可有可无的——他们的死无关紧要。
Opposites: essential (NECESSARY)indispensable