preferential
adjective [ before noun ] uk/ˌpref.ərˈen.ʃəl/ us/ˌpref.ərˈen.ʃəl/
优先的；优待的，优惠的
used to say that something you are given that is better than what other people receive
Inmates claimed that some prisoners had received preferential treatment. 犯人声称有些囚犯受到了优待。
Single mothers have been given preferential access to council housing. 单亲母亲被授予了优先享用市政会公房的权利。